Remove unused babel dev deps and config file that's no longer used

Author: ericallam

apps/webapp/.babelrc.json

@@ -232,8 +232,6 @@
     "@typescript-eslint/eslint-plugin": "^5.59.6",
     "@typescript-eslint/parser": "^5.59.6",
     "autoprefixer": "^10.4.13",
-    "babel-loader": "^9.1.3",
-    "babel-preset-react-app": "^10.0.1",
     "css-loader": "^6.10.0",
     "datepicker": "link:@types/@react-aria/datepicker",
     "engine.io": "^6.5.4",