Updated react-dev-utils

package.json

@@ -132,7 +132,7 @@
     "postcss-safe-parser": "^5.0.2",
     "raf": "^3.4.1",
     "react-app-polyfill": "^2.0.0",
-    "react-dev-utils": "^9.1.0",
+    "react-dev-utils": "^11.0.0",
     "resolve": "^1.19.0",
     "sass": "^1.29.0",
     "sass-loader": "^10.1.0",
@@ -153,8 +153,7 @@
     "webpack": "^4.44.2",
     "webpack-dev-server": "^3.11.0",
     "webpack-manifest-plugin": "^2.2.0",
-    "whatwg-fetch": "^3.5.0",
-    "workbox-webpack-plugin": "^5.1.4"
+    "whatwg-fetch": "^3.5.0"
   },
   "babel": {
     "presets": [