Update en.json

Signed-off-by: marcin mikołajczak <git@mkljczk.pl>

app/soapbox/locales/en.json

@@ -705,8 +705,6 @@
   "filters.context_header": "Filter contexts",
   "filters.context_hint": "One or multiple contexts where the filter should apply",
   "filters.filters_list_context_label": "Filter contexts:",
-  "filters.filters_list_delete": "Delete",
-  "filters.filters_list_details_label": "Filter settings:",
   "filters.filters_list_drop": "Drop",
   "filters.filters_list_hide": "Hide",
   "filters.filters_list_phrase_label": "Keyword or phrase:",