Remove experimentalImportFactories

packages/angular/cli/lib/config/schema.json

@@ -886,11 +886,6 @@
             "webWorkerTsConfig": {
               "type": "string",
               "description": "TypeScript configuration for Web Worker modules."
-            },
-            "experimentalImportFactories": {
-              "description": "**EXPERIMENTAL** Transform import statements for lazy routes to import factories when using View Engine. Should only be used when switching back and forth between View Engine and Ivy. See https://angular.io/guide/ivy for usage information.",
-              "type": "boolean",
-              "default": false
             }
           },
           "additionalProperties": false,

packages/angular_devkit/build_angular/src/angular-cli-files/models/build-options.ts

@@ -60,7 +60,6 @@ export interface BuildOptions {
   forkTypeChecker: boolean;
   profile?: boolean;
   es5BrowserSupport?: boolean;
-  experimentalImportFactories?: boolean;
 
   main: string;
   index: string;

packages/angular_devkit/build_angular/src/angular-cli-files/models/webpack-configs/typescript.ts

@@ -91,7 +91,6 @@ function _createAotPlugin(
     contextElementDependencyConstructor: require('webpack/lib/dependencies/ContextElementDependency'),
     logger: wco.logger,
     directTemplateLoading: true,
-    importFactories: buildOptions.experimentalImportFactories,
     ...options,
   };
 

packages/angular_devkit/build_angular/src/browser/schema.json

@@ -316,11 +316,6 @@
       "default": false,
       "x-deprecated": true
     },
-    "experimentalImportFactories": {
-      "description": "**EXPERIMENTAL** Transform import statements for lazy routes to import factories when using View Engine. Should only be used when switching back and forth between View Engine and Ivy. See https://angular.io/guide/ivy for usage information.",
-      "type": "boolean",
-      "default": false
-    },
     "webWorkerTsConfig": {
       "type": "string",
       "description": "TypeScript configuration for Web Worker modules."

packages/ngtools/webpack/src/angular_compiler_plugin.ts

@@ -94,7 +94,6 @@ export class AngularCompilerPlugin {
   private _moduleResolutionCache: ts.ModuleResolutionCache;
   private _resourceLoader?: WebpackResourceLoader;
   private _discoverLazyRoutes = true;
-  private _importFactories = false;
   private _useFactories = false;
   // Contains `moduleImportPath#exportName` => `fullModulePath`.
   private _lazyRoutes: LazyRouteMap = {};
@@ -283,11 +282,6 @@ export class AngularCompilerPlugin {
       this._useFactories = true;
     }
 
-    if (this._useFactories && options.importFactories === true) {
-      // Only transform imports to use factories with View Engine.
-      this._importFactories = true;
-    }
-
     // Default ContextElementDependency to the one we can import from here.
     // Failing to use the right ContextElementDependency will throw the error below:
     // "No module factory available for dependency type: ContextElementDependency"
@@ -931,7 +925,8 @@ export class AngularCompilerPlugin {
       // Remove unneeded angular decorators.
       this._transformers.push(removeDecorators(isAppPath, getTypeChecker));
       // Import ngfactory in loadChildren import syntax
-      if (this._importFactories) {
+      if (this._useFactories) {
+        // Only transform imports to use factories with View Engine.
         this._transformers.push(importFactory(msg => this._warnings.push(msg)));
       }
     }

packages/ngtools/webpack/src/interfaces.ts

@@ -49,7 +49,6 @@ export interface AngularCompilerPluginOptions {
   // When using Ivy, the string syntax is not supported at all. Thus we shouldn't attempt that.
   // This option is also used for when the compilation doesn't need this sort of processing at all.
   discoverLazyRoutes?: boolean;
-  importFactories?: boolean;
 
   // added to the list of lazy routes
   additionalLazyModules?: { [module: string]: string };

tests/legacy-cli/e2e/tests/build/lazy-load-syntax.ts

@@ -89,13 +89,6 @@ export default async function () {
   await ng('e2e', '--prod');
 
   // Test `import()` style lazy load.
-  if (!ivyProject) {
-    await updateJsonFile('angular.json', json => {
-      // Add the experimental flag to import factories in View Engine.
-      const buildTarget = json['projects'][projectName]['architect']['build'];
-      buildTarget['options']['experimentalImportFactories'] = true;
-    });
-  }
   // Both Ivy and View Engine should support it.
   await replaceLoadChildren(`() => import('./lazy/lazy.module').then(m => m.LazyModule)`);