docs: remove all deprecated @stable jsdoc tags (#23210)

These are no longer needed as stable docs are computed as those that
do not have `@experimental` or `@deprecated` tags.

PR Close #23210

packages/upgrade/src/common/angular1.ts

@@ -262,7 +262,7 @@ export function getAngularLib(): any {
  *
  * Used when AngularJS is loaded lazily, and not available on `window`.
  *
- * @stable
+ *
  */
 export function setAngularJSGlobal(ng: any): void {
   angular = ng;
@@ -272,7 +272,7 @@ export function setAngularJSGlobal(ng: any): void {
 /**
  * Returns the current AngularJS global.
  *
- * @stable
+ *
  */
 export function getAngularJSGlobal(): any {
   return angular;

packages/upgrade/src/common/version.ts

@@ -14,6 +14,6 @@
 
 import {Version} from '@angular/core';
 /**
- * @stable
+ *
  */
 export const VERSION = new Version('0.0.0-PLACEHOLDER');