Remove jest material/icons mapping

Author: lkostrowski

jest.config.js

@@ -32,7 +32,6 @@ const config = {
     "@dashboard(.*)$": "<rootDir>/src/$1",
     "@test/(.*)$": "<rootDir>/testUtils/$1",
     "^@material-ui/core$": "<rootDir>/node_modules/@material-ui/core",
-    "^@material-ui/icons$": "<rootDir>/node_modules/@material-ui/icons",
     "^@material-ui/styles$": "<rootDir>/node_modules/@material-ui/styles",
     "^react$": "<rootDir>/node_modules/react",
     "^react-dom$": "<rootDir>/node_modules/react-dom",