diff --git a/packages/angular_devkit/build_angular/BUILD.bazel b/packages/angular_devkit/build_angular/BUILD.bazel
index ee90b96ec703..b475ebfdf1bc 100644
--- a/packages/angular_devkit/build_angular/BUILD.bazel
+++ b/packages/angular_devkit/build_angular/BUILD.bazel
@@ -72,7 +72,6 @@ copy_to_bin(
 RUNTIME_ASSETS = glob(
     include = [
         "src/**/schema.json",
-        "src/**/*.js",
         "src/**/*.html",
     ],
 ) + [
diff --git a/packages/angular_devkit/build_angular/src/utils/index.ts b/packages/angular_devkit/build_angular/src/utils/index.ts
index 16aaa04d8c34..da07543fafa8 100644
--- a/packages/angular_devkit/build_angular/src/utils/index.ts
+++ b/packages/angular_devkit/build_angular/src/utils/index.ts
@@ -8,7 +8,6 @@
 
 export * from './default-progress';
 export { deleteOutputDir, loadProxyConfiguration } from '@angular/build/private';
-export * from './run-module-as-observable-fork';
 export * from './normalize-file-replacements';
 export * from './normalize-asset-patterns';
 export * from './normalize-source-maps';
diff --git a/packages/angular_devkit/build_angular/src/utils/run-module-as-observable-fork.ts b/packages/angular_devkit/build_angular/src/utils/run-module-as-observable-fork.ts
deleted file mode 100644
index f447103da9b4..000000000000
--- a/packages/angular_devkit/build_angular/src/utils/run-module-as-observable-fork.ts
+++ /dev/null
@@ -1,86 +0,0 @@
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.dev/license
- */
-
-import { BuilderOutput } from '@angular-devkit/architect';
-import { ForkOptions, fork } from 'node:child_process';
-import { resolve } from 'node:path';
-import { Observable } from 'rxjs';
-import treeKill from 'tree-kill';
-
-export function runModuleAsObservableFork(
-  cwd: string,
-  modulePath: string,
-  exportName: string | undefined,
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
-  args: any[],
-): Observable<BuilderOutput> {
-  return new Observable((obs) => {
-    const workerPath: string = resolve(__dirname, './run-module-worker.js');
-
-    const debugArgRegex = /--inspect(?:-brk|-port)?|--debug(?:-brk|-port)/;
-    const execArgv = process.execArgv.filter((arg) => {
-      // Remove debug args.
-      // Workaround for https://github.com/nodejs/node/issues/9435
-      return !debugArgRegex.test(arg);
-    });
-    const forkOptions: ForkOptions = {
-      cwd,
-      execArgv,
-    };
-
-    // TODO: support passing in a logger to use as stdio streams
-    // if (logger) {
-    //   (forkOptions as any).stdio = [
-    //     'ignore',
-    //     logger.info, // make it a stream
-    //     logger.error, // make it a stream
-    //   ];
-    // }
-
-    const forkedProcess = fork(workerPath, undefined, forkOptions);
-
-    // Cleanup.
-    const killForkedProcess = () => {
-      if (forkedProcess && forkedProcess.pid) {
-        treeKill(forkedProcess.pid, 'SIGTERM');
-      }
-    };
-
-    // Handle child process exit.
-    const handleChildProcessExit = (code?: number) => {
-      killForkedProcess();
-      if (code && code !== 0) {
-        obs.error();
-      }
-      obs.next({ success: true });
-      obs.complete();
-    };
-    forkedProcess.once('exit', handleChildProcessExit);
-    forkedProcess.once('SIGINT', handleChildProcessExit);
-    forkedProcess.once('uncaughtException', handleChildProcessExit);
-
-    // Handle parent process exit.
-    const handleParentProcessExit = () => {
-      killForkedProcess();
-    };
-    process.once('exit', handleParentProcessExit);
-    process.once('SIGINT', handleParentProcessExit);
-    process.once('uncaughtException', handleParentProcessExit);
-
-    // Run module.
-    forkedProcess.send({
-      hash: '5d4b9a5c0a4e0f9977598437b0e85bcc',
-      modulePath,
-      exportName,
-      args,
-    });
-
-    // Teardown logic. When unsubscribing, kill the forked process.
-    return killForkedProcess;
-  });
-}
diff --git a/packages/angular_devkit/build_angular/src/utils/run-module-worker.js b/packages/angular_devkit/build_angular/src/utils/run-module-worker.js
deleted file mode 100644
index a6f3fa54513a..000000000000
--- a/packages/angular_devkit/build_angular/src/utils/run-module-worker.js
+++ /dev/null
@@ -1,18 +0,0 @@
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.dev/license
- */
-process.on('message', (message) => {
-  // Only process messages with the hash in 'run-module-as-observable-fork.ts'.
-  if (message.hash === '5d4b9a5c0a4e0f9977598437b0e85bcc') {
-    const requiredModule = require(message.modulePath);
-    if (message.exportName) {
-      requiredModule[message.exportName](...message.args);
-    } else {
-      requiredModule(...message.args);
-    }
-  }
-});