diff --git a/app/soapbox/locales/locale-data/README.md b/app/soapbox/locales/locale-data/README.md
deleted file mode 100644
index 83368fae7..000000000
--- a/app/soapbox/locales/locale-data/README.md
+++ /dev/null
@@ -1,221 +0,0 @@
-# Custom Locale Data
-
-This folder is used to store custom locale data. These custom locale data are
-not yet provided by [Unicode Common Locale Data Repository](http://cldr.unicode.org/development/new-cldr-developers)
-and hence not provided in [react-intl/locale-data/*](https://github.com/yahoo/react-intl).
-
-The locale data should support [Locale Data APIs](https://github.com/yahoo/react-intl/wiki/API#locale-data-apis)
-of the react-intl library.
-
-It is recommended to start your custom locale data from this sample English
-locale data ([*](#plural-rules)):
-
-```javascript
-/*eslint eqeqeq: "off"*/
-/*eslint no-nested-ternary: "off"*/
-
-export default [
-  {
-    locale: "en",
-    pluralRuleFunction: function(e, a) {
-      var n = String(e).split("."),
-        l = !n[1],
-        o = Number(n[0]) == e,
-        t = o && n[0].slice(-1),
-        r = o && n[0].slice(-2);
-      return a ? 1 == t && 11 != r ? "one" : 2 == t && 12 != r ? "two" : 3 == t && 13 != r ? "few" : "other" : 1 == e && l ? "one" : "other"
-    },
-    fields: {
-      year: {
-        displayName: "year",
-        relative: {
-          0: "this year",
-          1: "next year",
-          "-1": "last year"
-        },
-        relativeTime: {
-          future: {
-            one: "in {0} year",
-            other: "in {0} years"
-          },
-          past: {
-            one: "{0} year ago",
-            other: "{0} years ago"
-          }
-        }
-      },
-      month: {
-        displayName: "month",
-        relative: {
-          0: "this month",
-          1: "next month",
-          "-1": "last month"
-        },
-        relativeTime: {
-          future: {
-            one: "in {0} month",
-            other: "in {0} months"
-          },
-          past: {
-            one: "{0} month ago",
-            other: "{0} months ago"
-          }
-        }
-      },
-      day: {
-        displayName: "day",
-        relative: {
-          0: "today",
-          1: "tomorrow",
-          "-1": "yesterday"
-        },
-        relativeTime: {
-          future: {
-            one: "in {0} day",
-            other: "in {0} days"
-          },
-          past: {
-            one: "{0} day ago",
-            other: "{0} days ago"
-          }
-        }
-      },
-      hour: {
-        displayName: "hour",
-        relativeTime: {
-          future: {
-            one: "in {0} hour",
-            other: "in {0} hours"
-          },
-          past: {
-            one: "{0} hour ago",
-            other: "{0} hours ago"
-          }
-        }
-      },
-      minute: {
-        displayName: "minute",
-        relativeTime: {
-          future: {
-            one: "in {0} minute",
-            other: "in {0} minutes"
-          },
-          past: {
-            one: "{0} minute ago",
-            other: "{0} minutes ago"
-          }
-        }
-      },
-      second: {
-        displayName: "second",
-        relative: {
-          0: "now"
-        },
-        relativeTime: {
-          future: {
-            one: "in {0} second",
-            other: "in {0} seconds"
-          },
-          past: {
-            one: "{0} second ago",
-            other: "{0} seconds ago"
-          }
-        }
-      }
-    }
-  }
-]
-
-```
-
-## Notes
-
-### Plural Rules
-
-The function `pluralRuleFunction()` should return the key to proper string of
-a plural form(s). The purpose of the function is to provide key of translate
-strings of correct plural form according. The different forms are described in
-[CLDR's Plural Rules][cldr-plural-rules],
-
-[cldr-plural-rules]: http://cldr.unicode.org/index/cldr-spec/plural-rules
-
-#### Quick Overview on CLDR Rules
-
-Let's take English as an example.
-
-When you describe a number, you can be either describe it as:
-* Cardinals: 1st, 2nd, 3rd ... 11th, 12th ... 21st, 22nd, 23nd ....
-* Ordinals: 1, 2, 3 ...
-
-In any of these cases, the nouns will reflect the number with singular or plural
-form. For example:
-* in 0 days
-* in 1 day
-* in 2 days
-
-The `pluralRuleFunction` receives 2 parameters:
-* `e`: a string representation of the number. Such as, "`1`", "`2`", "`2.1`".
-* `a`: `true` if this is "cardinal" type of description. `false` for ordinal and other case.
-
-#### How you should write `pluralRuleFunction`
-
-The first rule to write pluralRuleFunction is never translate the output string
-into your language. [Plural Rules][cldr-plural-rules] specified you should use
-these as the return values:
-
-  * "`zero`"
-  * "`one`" (singular)
-  * "`two`" (dual)
-  * "`few`" (paucal)
-  * "`many`" (also used for fractions if they have a separate class)
-  * "`other`" (required—general plural form—also used if the language only has a single form)
-
-Again, we'll use English as the example here.
-
-Let's read the `return` statement in the pluralRuleFunction above:
-```javascript
-  return a ? 1 == t && 11 != r ? "one" : 2 == t && 12 != r ? "two" : 3 == t && 13 != r ? "few" : "other" : 1 == e && l ? "one" : "other"
-```
-
-This nested ternary is hard to read. It basically means:
-```javascript
-// e: the number variable to examine
-// a: "true" if cardinals
-// l: "true" if the variable e has nothin after decimal mark (e.g. "1.0" would be false)
-// o: "true" if the variable e is an integer
-// t: the "ones" of the number. e.g. "3" for number "9123"
-// r: the "ones" and "tens" of the number. e.g. "23" for number "9123"
-if (a == true) {
-  if (t == 1 && r != 11) {
-    return "one"; // i.e. 1st, 21st, 101st, 121st ...
-  } else if (t == 2 && r != 12) {
-    return "two"; // i.e. 2nd, 22nd, 102nd, 122nd ...
-  } else if (t == 3 && r != 13) {
-    return "few"; // i.e. 3rd, 23rd, 103rd, 123rd ...
-  } else {
-    return "other"; // i.e. 4th, 11th, 12th, 24th ...
-  }
-} else {
-  if (e == 1 && l) {
-    return "one"; // i.e. 1 day
-  } else {
-    return "other"; // i.e. 0 days, 2 days, 3 days
-  }
-}
-```
-
-If your language, like French, do not have complicated cardinal rules, you may
-use the French's version of it:
-```javascript
-function (e, a) {
-  return a ? 1 == e ? "one" : "other" : e >= 0 && e < 2 ? "one" : "other";
-}
-```
-
-If your language, like Chinese, do not have any pluralization rule at all you
-may use the Chinese's version of it:
-```javascript
-function (e, a) {
-  return "other";
-}
-```
diff --git a/app/soapbox/locales/locale-data/co.js b/app/soapbox/locales/locale-data/co.js
deleted file mode 100644
index dc94f1044..000000000
--- a/app/soapbox/locales/locale-data/co.js
+++ /dev/null
@@ -1,108 +0,0 @@
-/*eslint eqeqeq: "off"*/
-/*eslint no-nested-ternary: "off"*/
-/*eslint quotes: "off"*/
-
-export default [{
-  locale: "co",
-  pluralRuleFunction: function(e, a) {
-    return a ? 1 == e ? "one" : "other" : e >= 0 && e < 2 ? "one" : "other";
-  },
-  fields: {
-    year: {
-      displayName: "annu",
-      relative: {
-        0: "quist'annu",
-        1: "l'annu chì vene",
-        "-1": "l'annu passatu",
-      },
-      relativeTime: {
-        future: {
-          one: "in {0} annu",
-          other: "in {0} anni",
-        },
-        past: {
-          one: "{0} annu fà",
-          other: "{0} anni fà",
-        },
-      },
-    },
-    month: {
-      displayName: "mese",
-      relative: {
-        0: "Questu mese",
-        1: "u mese chì vene",
-        "-1": "u mese passatu",
-      },
-      relativeTime: {
-        future: {
-          one: "in {0} mese",
-          other: "in {0} mesi",
-        },
-        past: {
-          one: "{0} mese fà",
-          other: "{0} mesi fà",
-        },
-      },
-    },
-    day: {
-      displayName: "ghjornu",
-      relative: {
-        0: "oghje",
-        1: "dumane",
-        "-1": "eri",
-      },
-      relativeTime: {
-        future: {
-          one: "in {0} ghjornu",
-          other: "in {0} ghjornu",
-        },
-        past: {
-          one: "{0} ghjornu fà",
-          other: "{0} ghjorni fà",
-        },
-      },
-    },
-    hour: {
-      displayName: "ora",
-      relativeTime: {
-        future: {
-          one: "in {0} ora",
-          other: "in {0} ore",
-        },
-        past: {
-          one: "{0} ora fà",
-          other: "{0} ore fà",
-        },
-      },
-    },
-    minute: {
-      displayName: "minuta",
-      relativeTime: {
-        future: {
-          one: "in {0} minuta",
-          other: "in {0} minute",
-        },
-        past: {
-          one: "{0} minuta fà",
-          other: "{0} minute fà",
-        },
-      },
-    },
-    second: {
-      displayName: "siconda",
-      relative: {
-        0: "avà",
-      },
-      relativeTime: {
-        future: {
-          one: "in {0} siconda",
-          other: "in {0} siconde",
-        },
-        past: {
-          one: "{0} siconda fà",
-          other: "{0} siconde fà",
-        },
-      },
-    },
-  },
-}];
diff --git a/app/soapbox/locales/locale-data/oc.js b/app/soapbox/locales/locale-data/oc.js
deleted file mode 100644
index 7a0f34094..000000000
--- a/app/soapbox/locales/locale-data/oc.js
+++ /dev/null
@@ -1,108 +0,0 @@
-/*eslint eqeqeq: "off"*/
-/*eslint no-nested-ternary: "off"*/
-/*eslint quotes: "off"*/
-
-export default [{
-  locale: "oc",
-  pluralRuleFunction: function(e, a) {
-    return a ? 1 == e ? "one" : "other" : e >= 0 && e < 2 ? "one" : "other";
-  },
-  fields: {
-    year: {
-      displayName: "an",
-      relative: {
-        0: "ongan",
-        1: "l'an que ven",
-        "-1": "l'an passat",
-      },
-      relativeTime: {
-        future: {
-          one: "d’aquí {0} an",
-          other: "d’aquí {0} ans",
-        },
-        past: {
-          one: "fa {0} an",
-          other: "fa {0} ans",
-        },
-      },
-    },
-    month: {
-      displayName: "mes",
-      relative: {
-        0: "aqueste mes",
-        1: "lo mes que ven",
-        "-1": "lo mes passat",
-      },
-      relativeTime: {
-        future: {
-          one: "d’aquí {0} mes",
-          other: "d’aquí {0} meses",
-        },
-        past: {
-          one: "fa {0} mes",
-          other: "fa {0} meses",
-        },
-      },
-    },
-    day: {
-      displayName: "jorn",
-      relative: {
-        0: "uèi",
-        1: "deman",
-        "-1": "ièr",
-      },
-      relativeTime: {
-        future: {
-          one: "d’aquí {0} jorn",
-          other: "d’aquí {0} jorns",
-        },
-        past: {
-          one: "fa {0} jorn",
-          other: "fa {0} jorns",
-        },
-      },
-    },
-    hour: {
-      displayName: "ora",
-      relativeTime: {
-        future: {
-          one: "d’aquí {0} ora",
-          other: "d’aquí {0} oras",
-        },
-        past: {
-          one: "fa {0} ora",
-          other: "fa {0} oras",
-        },
-      },
-    },
-    minute: {
-      displayName: "minuta",
-      relativeTime: {
-        future: {
-          one: "d’aquí {0} minuta",
-          other: "d’aquí {0} minutas",
-        },
-        past: {
-          one: "fa {0} minuta",
-          other: "fa {0} minutas",
-        },
-      },
-    },
-    second: {
-      displayName: "segonda",
-      relative: {
-        0: "ara",
-      },
-      relativeTime: {
-        future: {
-          one: "d’aquí {0} segonda",
-          other: "d’aquí {0} segondas",
-        },
-        past: {
-          one: "fa {0} segonda",
-          other: "fa {0} segondas",
-        },
-      },
-    },
-  },
-}];
diff --git a/jest.config.js b/jest.config.js
index 396486a39..74e38cfdd 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -21,7 +21,6 @@ module.exports = {
     'app/soapbox/**/*.ts',
     'app/soapbox/**/*.tsx',
     '!app/soapbox/features/emoji/emoji-compressed.js',
-    '!app/soapbox/locales/locale-data/*.js',
     '!app/soapbox/service-worker/entry.ts',
     '!app/soapbox/jest/test-setup.ts',
     '!app/soapbox/jest/test-helpers.ts',