refactor(cypress): delete dead code, treeshaking

Author: duncdrum

cypress.json

@@ -2,7 +2,6 @@
   "baseUrl": "http://localhost:3000",
   "ignoreTestFiles": "**/integration/examples/*.*",
   "projectId": "ftw148",
-  "experimentalFetchPolyfill": true,
   "env": {
     "API_HOST": "http://localhost:8080"
   }