fix(material/autocomplete): 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:
* `MAT_AUTOCOMPLETE_DEFAULT_OPTIONS_FACTORY` has been removed.
* `MAT_AUTOCOMPLETE_SCROLL_STRATEGY_FACTORY` has been removed.
* `MAT_AUTOCOMPLETE_SCROLL_STRATEGY_FACTORY_PROVIDER` has been removed.

Author: crisbeto

goldens/material/autocomplete/index.api.md

@@ -35,22 +35,9 @@ export function getMatAutocompleteMissingPanelError(): Error;
 // @public
 export const MAT_AUTOCOMPLETE_DEFAULT_OPTIONS: InjectionToken<MatAutocompleteDefaultOptions>;
 
-// @public @deprecated
-export function MAT_AUTOCOMPLETE_DEFAULT_OPTIONS_FACTORY(): MatAutocompleteDefaultOptions;
-
 // @public
 export const MAT_AUTOCOMPLETE_SCROLL_STRATEGY: InjectionToken<() => ScrollStrategy>;
 
-// @public @deprecated
-export function MAT_AUTOCOMPLETE_SCROLL_STRATEGY_FACTORY(_overlay: unknown): () => ScrollStrategy;
-
-// @public @deprecated
-export const MAT_AUTOCOMPLETE_SCROLL_STRATEGY_FACTORY_PROVIDER: {
-    provide: InjectionToken<() => ScrollStrategy>;
-    deps: any[];
-    useFactory: typeof MAT_AUTOCOMPLETE_SCROLL_STRATEGY_FACTORY;
-};
-
 // @public
 export const MAT_AUTOCOMPLETE_VALUE_ACCESSOR: any;
 

src/material/autocomplete/autocomplete-module.ts

@@ -11,10 +11,7 @@ import {MatCommonModule, MatOptionModule} from '../core';
 import {CdkScrollableModule} from '@angular/cdk/scrolling';
 import {OverlayModule} from '@angular/cdk/overlay';
 import {MatAutocomplete} from './autocomplete';
-import {
-  MatAutocompleteTrigger,
-  MAT_AUTOCOMPLETE_SCROLL_STRATEGY_FACTORY_PROVIDER,
-} from './autocomplete-trigger';
+import {MatAutocompleteTrigger} from './autocomplete-trigger';
 import {MatAutocompleteOrigin} from './autocomplete-origin';
 
 @NgModule({
@@ -34,6 +31,5 @@ import {MatAutocompleteOrigin} from './autocomplete-origin';
     MatAutocompleteTrigger,
     MatAutocompleteOrigin,
   ],
-  providers: [MAT_AUTOCOMPLETE_SCROLL_STRATEGY_FACTORY_PROVIDER],
 })
 export class MatAutocompleteModule {}

src/material/autocomplete/autocomplete-trigger.ts

@@ -97,27 +97,6 @@ export const MAT_AUTOCOMPLETE_SCROLL_STRATEGY = new InjectionToken<() => ScrollS
   },
 );
 
-/**
- * @docs-private
- * @deprecated No longer used, will be removed.
- * @breaking-change 21.0.0
- */
-export function MAT_AUTOCOMPLETE_SCROLL_STRATEGY_FACTORY(_overlay: unknown): () => ScrollStrategy {
-  const injector = inject(Injector);
-  return () => createRepositionScrollStrategy(injector);
-}
-
-/**
- * @docs-private
- * @deprecated No longer used, will be removed.
- * @breaking-change 21.0.0
- */
-export const MAT_AUTOCOMPLETE_SCROLL_STRATEGY_FACTORY_PROVIDER = {
-  provide: MAT_AUTOCOMPLETE_SCROLL_STRATEGY,
-  deps: [] as any[],
-  useFactory: MAT_AUTOCOMPLETE_SCROLL_STRATEGY_FACTORY,
-};
-
 /** Base class with all of the `MatAutocompleteTrigger` functionality. */
 @Directive({
   selector: `input[matAutocomplete], textarea[matAutocomplete]`,

src/material/autocomplete/autocomplete.ts

@@ -88,25 +88,16 @@ export const MAT_AUTOCOMPLETE_DEFAULT_OPTIONS = new InjectionToken<MatAutocomple
   'mat-autocomplete-default-options',
   {
     providedIn: 'root',
-    factory: MAT_AUTOCOMPLETE_DEFAULT_OPTIONS_FACTORY,
+    factory: () => ({
+      autoActiveFirstOption: false,
+      autoSelectActiveOption: false,
+      hideSingleSelectionIndicator: false,
+      requireSelection: false,
+      hasBackdrop: false,
+    }),
   },
 );
 
-/**
- * @docs-private
- * @deprecated No longer used, will be removed.
- * @breaking-change 21.0.0
- */
-export function MAT_AUTOCOMPLETE_DEFAULT_OPTIONS_FACTORY(): MatAutocompleteDefaultOptions {
-  return {
-    autoActiveFirstOption: false,
-    autoSelectActiveOption: false,
-    hideSingleSelectionIndicator: false,
-    requireSelection: false,
-    hasBackdrop: false,
-  };
-}
-
 /** Autocomplete component. */
 @Component({
   selector: 'mat-autocomplete',