Back out "Add enum example to Android/iOS rn-tester TurboModule" (#35089)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/35089

Changelog:
[General][Fixed] - Back out "Add enum example to Android/iOS rn-tester TurboModule"

This broke the rn-tester adding due to an invalid flow-enum setup. Needs further investigation

Reviewed By: cipolleschi

Differential Revision: D40714320

fbshipit-source-id: 9831276762f90df0ffaca3304382fe5925009343

Libraries/TurboModule/samples/NativeSampleTurboModule.js

@@ -13,11 +13,6 @@ import type {RootTag, TurboModule} from '../RCTExport';
 
 import * as TurboModuleRegistry from '../TurboModuleRegistry';
 
-export enum EnumInt {
-  A = 23,
-  B = 42,
-}
-
 export interface Spec extends TurboModule {
   // Exported methods.
   +getConstants: () => {|
@@ -27,7 +22,6 @@ export interface Spec extends TurboModule {
   |};
   +voidFunc: () => void;
   +getBool: (arg: boolean) => boolean;
-  +getEnum?: (arg: EnumInt) => EnumInt;
   +getNumber: (arg: number) => number;
   +getString: (arg: string) => string;
   +getArray: (arg: Array<any>) => Array<any>;