update browserslist - not ie 11

package-lock.json

@@ -5,7 +5,6 @@
   "requires": true,
   "packages": {
     "": {
-      "name": "wagtail",
       "version": "1.0.0",
       "dependencies": {
         "draft-js": "^0.10.5",

package.json

@@ -13,7 +13,8 @@
     "last 2 Edge versions",
     "last 1 Firefox version",
     "last 2 iOS versions",
-    "last 3 Safari versions"
+    "last 3 Safari versions",
+    "not ie 11"
   ],
   "jest": {
     "moduleFileExtensions": [