remove-duplicated-jest-config (#5465)

package.json

@@ -134,22 +134,5 @@
   },
   "optionalDependencies": {
     "fsevents": "*"
-  },
-  "jest": {
-    "projects": [
-      "<rootDir>/app/javascript/mastodon"
-    ],
-    "testPathIgnorePatterns": [
-      "<rootDir>/node_modules/",
-      "<rootDir>/vendor/",
-      "<rootDir>/config/",
-      "<rootDir>/log/",
-      "<rootDir>/public/",
-      "<rootDir>/tmp/"
-    ],
-    "setupFiles": [
-      "raf/polyfill"
-    ],
-    "setupTestFrameworkScriptFile": "<rootDir>/app/javascript/mastodon/test_setup.js"
   }
 }