refactor(@angular/cli): remove unused testing option

This option is never set and doesn't provide any value, since typically when one wants to debug, you add a `debugger` statement where needed or use the `break on exception` option in the debugger.

Author: alan-agius4

packages/angular/cli/lib/cli/index.ts

@@ -17,7 +17,7 @@ import { writeErrorToLogFile } from '../../src/utilities/log-file';
 export { VERSION } from '../../src/utilities/version';
 
 /* eslint-disable no-console */
-export default async function (options: { testing?: boolean; cliArgs: string[] }) {
+export default async function (options: { cliArgs: string[] }) {
   // This node version check ensures that the requirements of the project instance of the CLI are met
   const [major, minor] = process.versions.node.split('.').map((part) => Number(part));
   if (major < 14 || (major === 14 && minor < 15)) {
@@ -80,12 +80,6 @@ export default async function (options: { testing?: boolean; cliArgs: string[] }
       logger.fatal('An unexpected error occurred: ' + JSON.stringify(err));
     }
 
-    if (options.testing) {
-      // eslint-disable-next-line no-debugger
-      debugger;
-      throw err;
-    }
-
     return 1;
   }
 }