refactor(core): remove NgProbeToken class (#63279)

This class served no purpose and was deprecated in by #51396

G3 also has no usage anymore.

PR Close #63279

goldens/public-api/core/index.api.md

@@ -1275,15 +1275,6 @@ export abstract class NgModuleRef<T> {
     abstract onDestroy(callback: () => void): void;
 }
 
-// @public @deprecated
-export class NgProbeToken {
-    constructor(name: string, token: any);
-    // (undocumented)
-    name: string;
-    // (undocumented)
-    token: any;
-}
-
 // @public
 export class NgZone {
     constructor(options: {

packages/core/src/application/application_ref.ts

@@ -91,19 +91,6 @@ export function isBoundToModule<C>(cf: ComponentFactory<C>): boolean {
   return (cf as R3ComponentFactory<C>).isBoundToModule;
 }
 
-/**
- * A token for third-party components that can register themselves with NgProbe.
- *
- * @deprecated
- * @publicApi
- */
-export class NgProbeToken {
-  constructor(
-    public name: string,
-    public token: any,
-  ) {}
-}
-
 /**
  * Provides additional options to the bootstrapping process.
  *

packages/core/src/core.ts

@@ -27,7 +27,6 @@ export * from './di';
 export {
   BootstrapOptions,
   ApplicationRef,
-  NgProbeToken,
   APP_BOOTSTRAP_LISTENER,
 } from './application/application_ref';
 export {PlatformRef} from './platform/platform_ref';