fix(material/select): 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_SELECT_SCROLL_STRATEGY_PROVIDER` has been removed.
* `MAT_SELECT_SCROLL_STRATEGY_PROVIDER_FACTORY` has been removed.

Author: crisbeto

goldens/material/select/index.api.md

@@ -48,16 +48,6 @@ export const MAT_SELECT_CONFIG: InjectionToken<MatSelectConfig>;
 // @public
 export const MAT_SELECT_SCROLL_STRATEGY: InjectionToken<() => ScrollStrategy>;
 
-// @public @deprecated
-export const MAT_SELECT_SCROLL_STRATEGY_PROVIDER: {
-    provide: InjectionToken<() => ScrollStrategy>;
-    deps: any[];
-    useFactory: typeof MAT_SELECT_SCROLL_STRATEGY_PROVIDER_FACTORY;
-};
-
-// @public @deprecated
-export function MAT_SELECT_SCROLL_STRATEGY_PROVIDER_FACTORY(_overlay: unknown): () => ScrollStrategy;
-
 // @public
 export const MAT_SELECT_TRIGGER: InjectionToken<MatSelectTrigger>;
 

src/material/select/select-module.ts

@@ -11,7 +11,7 @@ import {NgModule} from '@angular/core';
 import {MatCommonModule, MatOptionModule} from '../core';
 import {MatFormFieldModule} from '../form-field';
 import {CdkScrollableModule} from '@angular/cdk/scrolling';
-import {MatSelect, MatSelectTrigger, MAT_SELECT_SCROLL_STRATEGY_PROVIDER} from './select';
+import {MatSelect, MatSelectTrigger} from './select';
 
 @NgModule({
   imports: [OverlayModule, MatOptionModule, MatCommonModule, MatSelect, MatSelectTrigger],
@@ -23,6 +23,5 @@ import {MatSelect, MatSelectTrigger, MAT_SELECT_SCROLL_STRATEGY_PROVIDER} from '
     MatOptionModule,
     MatCommonModule,
   ],
-  providers: [MAT_SELECT_SCROLL_STRATEGY_PROVIDER],
 })
 export class MatSelectModule {}

src/material/select/select.ts

@@ -105,18 +105,6 @@ export const MAT_SELECT_SCROLL_STRATEGY = new InjectionToken<() => ScrollStrateg
   },
 );
 
-/**
- * @docs-private
- * @deprecated No longer used, will be removed.
- * @breaking-change 21.0.0
- */
-export function MAT_SELECT_SCROLL_STRATEGY_PROVIDER_FACTORY(
-  _overlay: unknown,
-): () => ScrollStrategy {
-  const injector = inject(Injector);
-  return () => createRepositionScrollStrategy(injector);
-}
-
 /** Object that can be used to configure the default options for the select module. */
 export interface MatSelectConfig {
   /** Whether option centering should be disabled. */
@@ -147,17 +135,6 @@ export interface MatSelectConfig {
 /** Injection token that can be used to provide the default options the select module. */
 export const MAT_SELECT_CONFIG = new InjectionToken<MatSelectConfig>('MAT_SELECT_CONFIG');
 
-/**
- * @docs-private
- * @deprecated No longer used, will be removed.
- * @breaking-change 21.0.0
- */
-export const MAT_SELECT_SCROLL_STRATEGY_PROVIDER = {
-  provide: MAT_SELECT_SCROLL_STRATEGY,
-  deps: [] as any[],
-  useFactory: MAT_SELECT_SCROLL_STRATEGY_PROVIDER_FACTORY,
-};
-
 /**
  * Injection token that can be used to reference instances of `MatSelectTrigger`. It serves as
  * alternative token to the actual `MatSelectTrigger` class which could cause unnecessary