diff --git a/packages/workspace/src/utils/testing.ts b/packages/workspace/src/utils/testing.ts
deleted file mode 100644
index 516c164164..0000000000
--- a/packages/workspace/src/utils/testing.ts
+++ /dev/null
@@ -1,71 +0,0 @@
-import { join } from 'path';
-import { SchematicTestRunner } from '@angular-devkit/schematics/testing';
-import type { Rule, Tree } from '@angular-devkit/schematics';
-
-const testRunner = new SchematicTestRunner(
-  '@nrwl/workspace',
-  join(__dirname, '../../generators.json')
-);
-
-testRunner.registerCollection(
-  '@nrwl/jest',
-  join(__dirname, '../../../jest/generators.json')
-);
-
-testRunner.registerCollection(
-  '@nrwl/cypress',
-  join(__dirname, '../../../cypress/generators.json')
-);
-
-testRunner.registerCollection(
-  '@nrwl/express',
-  join(__dirname, '../../../express/generators.json')
-);
-
-testRunner.registerCollection(
-  '@nrwl/react',
-  join(__dirname, '../../../react/generators.json')
-);
-
-testRunner.registerCollection(
-  '@nrwl/angular',
-  join(__dirname, '../../../angular/generators.json')
-);
-
-testRunner.registerCollection(
-  '@nrwl/next',
-  join(__dirname, '../../../next/generators.json')
-);
-
-testRunner.registerCollection(
-  '@nrwl/node',
-  join(__dirname, '../../../node/generators.json')
-);
-
-testRunner.registerCollection(
-  '@nrwl/nest',
-  join(__dirname, '../../../nest/generators.json')
-);
-
-testRunner.registerCollection(
-  '@nrwl/web',
-  join(__dirname, '../../../web/generators.json')
-);
-
-/**
- * @deprecated This will be removed in v17. Prefer writing Nx Generators with @nrwl/devkit. Generators can be tested by simply calling them in it().
- */
-export function runSchematic<T extends object = any>(
-  schematicName: string,
-  options: T,
-  tree: Tree
-) {
-  return testRunner.runSchematicAsync(schematicName, options, tree).toPromise();
-}
-
-/**
- * @deprecated This will be removed in v17. Prefer writing Nx Generators with @nrwl/devkit. Generators can be tested by simply calling them in it().
- */
-export function callRule(rule: Rule, tree: Tree) {
-  return testRunner.callRule(rule, tree).toPromise();
-}
diff --git a/packages/workspace/testing.ts b/packages/workspace/testing.ts
index 295759d6b8..cd585f1dda 100644
--- a/packages/workspace/testing.ts
+++ b/packages/workspace/testing.ts
@@ -3,4 +3,3 @@ export {
   getFileContent,
   MockBuilderContext,
 } from './src/utils/testing-utils';
-export { callRule, runSchematic } from './src/utils/testing';