refactor(router): remove Compiler injectee from RouterPreloader (angular#60945)

This commit removes the `Compiler` injectee from the `RouterPreloader` constructor. It's unused but was still being referenced in the factory definition: `static ɵfac = ɵɵngDeclareFactory(...)`.

PR Close angular#60945

Author: arturovt

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

@@ -7,7 +7,6 @@
 import { AfterContentInit } from '@angular/core';
 import * as _angular_router from '@angular/router';
 import { ChangeDetectorRef } from '@angular/core';
-import { Compiler } from '@angular/core';
 import { ComponentRef } from '@angular/core';
 import { ElementRef } from '@angular/core';
 import { EnvironmentInjector } from '@angular/core';
@@ -933,7 +932,7 @@ export interface RouterOutletContract {
 
 // @public
 export class RouterPreloader implements OnDestroy {
-    constructor(router: Router, compiler: Compiler, injector: EnvironmentInjector, preloadingStrategy: PreloadingStrategy, loader: RouterConfigLoader);
+    constructor(router: Router, injector: EnvironmentInjector, preloadingStrategy: PreloadingStrategy, loader: RouterConfigLoader);
     // (undocumented)
     ngOnDestroy(): void;
     // (undocumented)

packages/router/src/router_preloader.ts

@@ -6,13 +6,7 @@
  * found in the LICENSE file at https://angular.dev/license
  */
 
-import {
-  Compiler,
-  createEnvironmentInjector,
-  EnvironmentInjector,
-  Injectable,
-  OnDestroy,
-} from '@angular/core';
+import {createEnvironmentInjector, EnvironmentInjector, Injectable, OnDestroy} from '@angular/core';
 import {from, Observable, of, Subscription} from 'rxjs';
 import {catchError, concatMap, filter, mergeAll, mergeMap} from 'rxjs/operators';
 
@@ -84,7 +78,6 @@ export class RouterPreloader implements OnDestroy {
 
   constructor(
     private router: Router,
-    compiler: Compiler,
     private injector: EnvironmentInjector,
     private preloadingStrategy: PreloadingStrategy,
     private loader: RouterConfigLoader,