Delete tests migrated to Fantom and unnecessary mocks for FabricUIManager, DOM, etc. (2nd attempt) (#48117)

Summary:
Pull Request resolved: #48117

Changelog: [internal]

Re-land #48087 with some CI fixes.

Reviewed By: rshest

Differential Revision: D66820310

fbshipit-source-id: 1df4559c1daf5ec0085b299d702ce36deaa681b5

Author: rubennorte

jest.config.js

@@ -37,7 +37,6 @@ module.exports = {
     '/node_modules/',
     '<rootDir>/packages/react-native/sdks',
     '<rootDir>/packages/react-native/Libraries/Renderer',
-    '<rootDir>/packages/react-native-test-renderer/src',
     '<rootDir>/packages/react-native/sdks/hermes/',
     ...PODS_LOCATIONS,
   ],