fix(cdk/a11y): remove deprecated factory functions

Removes factory functions that we had marked as deprecated for v21. These functions aren't necessary since we switched to standalone.

BREAKING CHANGE:
* `LIVE_ANNOUNCER_ELEMENT_TOKEN_FACTORY` has been removed.
* `TREE_KEY_MANAGER_FACTORY` has been removed.
* `TREE_KEY_MANAGER_FACTORY_PROVIDER` has been removed.

Author: crisbeto

goldens/cdk/a11y/index.api.md

@@ -401,9 +401,6 @@ export const LIVE_ANNOUNCER_DEFAULT_OPTIONS: InjectionToken<LiveAnnouncerDefault
 // @public (undocumented)
 export const LIVE_ANNOUNCER_ELEMENT_TOKEN: InjectionToken<HTMLElement | null>;
 
-// @public @deprecated
-export function LIVE_ANNOUNCER_ELEMENT_TOKEN_FACTORY(): null;
-
 // @public (undocumented)
 export class LiveAnnouncer implements OnDestroy {
     constructor(...args: unknown[]);
@@ -429,9 +426,6 @@ export interface LiveAnnouncerDefaultOptions {
 // @public @deprecated
 export const MESSAGES_CONTAINER_ID = "cdk-describedby-message-container";
 
-// @public @deprecated
-export function NOOP_TREE_KEY_MANAGER_FACTORY<T extends TreeKeyManagerItem>(): TreeKeyManagerFactory<T>;
-
 // @public @deprecated
 export const NOOP_TREE_KEY_MANAGER_FACTORY_PROVIDER: Provider;
 
@@ -465,15 +459,6 @@ export function removeAriaReferencedId(el: Element, attr: `aria-${string}`, id:
 // @public
 export const TREE_KEY_MANAGER: InjectionToken<TreeKeyManagerFactory<any>>;
 
-// @public @deprecated
-export function TREE_KEY_MANAGER_FACTORY<T extends TreeKeyManagerItem>(): TreeKeyManagerFactory<T>;
-
-// @public @deprecated
-export const TREE_KEY_MANAGER_FACTORY_PROVIDER: {
-    provide: InjectionToken<TreeKeyManagerFactory<any>>;
-    useFactory: typeof TREE_KEY_MANAGER_FACTORY;
-};
-
 // @public
 export class TreeKeyManager<T extends TreeKeyManagerItem> implements TreeKeyManagerStrategy<T> {
     constructor(items: Observable<T[]> | QueryList<T> | T[], config: TreeKeyManagerOptions<T>);

src/cdk/a11y/key-manager/noop-tree-key-manager.ts

@@ -8,11 +8,7 @@
 
 import {Subject} from 'rxjs';
 import {TREE_KEY_MANAGER} from './tree-key-manager';
-import {
-  TreeKeyManagerFactory,
-  TreeKeyManagerItem,
-  TreeKeyManagerStrategy,
-} from './tree-key-manager-strategy';
+import {TreeKeyManagerItem, TreeKeyManagerStrategy} from './tree-key-manager-strategy';
 import {Provider} from '@angular/core';
 
 // NoopTreeKeyManager is a "noop" implementation of TreeKeyMangerStrategy. Methods are noops. Does
@@ -67,27 +63,6 @@ export class NoopTreeKeyManager<T extends TreeKeyManagerItem> implements TreeKey
   }
 }
 
-/**
- * @docs-private
- *
- * Opt-out of Tree of key manager behavior.
- *
- * When provided, Tree has same focus management behavior as before TreeKeyManager was introduced.
- *  - Tree does not respond to keyboard interaction
- *  - Tree node allows tabindex to be set by Input binding
- *  - Tree node allows tabindex to be set by attribute binding
- *
- * @deprecated NoopTreeKeyManager deprecated. Use TreeKeyManager or inject a
- * TreeKeyManagerStrategy instead. To be removed in a future version.
- *
- * @breaking-change 21.0.0
- */
-export function NOOP_TREE_KEY_MANAGER_FACTORY<
-  T extends TreeKeyManagerItem,
->(): TreeKeyManagerFactory<T> {
-  return () => new NoopTreeKeyManager<T>();
-}
-
 /**
  * @docs-private
  *
@@ -105,5 +80,5 @@ export function NOOP_TREE_KEY_MANAGER_FACTORY<
  */
 export const NOOP_TREE_KEY_MANAGER_FACTORY_PROVIDER: Provider = {
   provide: TREE_KEY_MANAGER,
-  useFactory: NOOP_TREE_KEY_MANAGER_FACTORY,
+  useFactory: () => () => new NoopTreeKeyManager(),
 };

src/cdk/a11y/key-manager/tree-key-manager.ts

@@ -411,27 +411,8 @@ export class TreeKeyManager<T extends TreeKeyManagerItem> implements TreeKeyMana
   }
 }
 
-/**
- * @docs-private
- * @deprecated No longer used, will be removed.
- * @breaking-change 21.0.0
- */
-export function TREE_KEY_MANAGER_FACTORY<T extends TreeKeyManagerItem>(): TreeKeyManagerFactory<T> {
-  return (items, options) => new TreeKeyManager(items, options);
-}
-
 /** Injection token that determines the key manager to use. */
 export const TREE_KEY_MANAGER = new InjectionToken<TreeKeyManagerFactory<any>>('tree-key-manager', {
   providedIn: 'root',
-  factory: TREE_KEY_MANAGER_FACTORY,
+  factory: () => (items, options) => new TreeKeyManager(items, options),
 });
-
-/**
- * @docs-private
- * @deprecated No longer used, will be removed.
- * @breaking-change 21.0.0
- */
-export const TREE_KEY_MANAGER_FACTORY_PROVIDER = {
-  provide: TREE_KEY_MANAGER,
-  useFactory: TREE_KEY_MANAGER_FACTORY,
-};

src/cdk/a11y/live-announcer/live-announcer-tokens.ts

@@ -18,19 +18,10 @@ export const LIVE_ANNOUNCER_ELEMENT_TOKEN = new InjectionToken<HTMLElement | nul
   'liveAnnouncerElement',
   {
     providedIn: 'root',
-    factory: LIVE_ANNOUNCER_ELEMENT_TOKEN_FACTORY,
+    factory: () => null,
   },
 );
 
-/**
- * @docs-private
- * @deprecated No longer used, will be removed.
- * @breaking-change 21.0.0
- */
-export function LIVE_ANNOUNCER_ELEMENT_TOKEN_FACTORY(): null {
-  return null;
-}
-
 /** Object that can be used to configure the default options for the LiveAnnouncer. */
 export interface LiveAnnouncerDefaultOptions {
   /** Default politeness for the announcements. */