fix(core): remove outdated workaround artificially keeping process al…

…ive (#27062)

Remove an old workaround added in #5807.
The issue it was addressing was fixed in the Angular CLI shortly after,
but the workaround was never removed.

<!-- Please make sure you have read the submission guidelines before
posting an PR -->
<!--
https://github.com/nrwl/nx/blob/master/CONTRIBUTING.md#-submitting-a-pr
-->

<!-- Please make sure that your commit message follows our format -->
<!-- Example: `fix(nx): must begin with lowercase` -->

<!-- If this is a particularly complex change or feature addition, you
can request a dedicated Nx release for this pull request branch. Mention
someone from the Nx team or the `@nrwl/nx-pipelines-reviewers` and they
will confirm if the PR warrants its own release for testing purposes,
and generate it for you if appropriate. -->

## Current Behavior
<!-- This is the behavior we have today -->

## Expected Behavior
<!-- This is the behavior we should expect with the changes in this PR
-->

## Related Issue(s)
<!-- Please link the issue being fixed so it gets closed when this is
merged. -->

Fixes #

(cherry picked from commit e474b59)

packages/nx/src/command-line/run/run.ts

@@ -70,19 +70,8 @@ async function* promiseToIterator<T extends { success: boolean }>(
 async function iteratorToProcessStatusCode(
   i: AsyncIterableIterator<{ success: boolean }>
 ): Promise<number> {
-  // This is a workaround to fix an issue that only happens with
-  // the @angular-devkit/build-angular:browser builder. Starting
-  // on version 12.0.1, a SASS compilation implementation was
-  // introduced making use of workers and it's unref()-ing the worker
-  // too early, causing the process to exit early in environments
-  // like CI or when running Docker builds.
-  const keepProcessAliveInterval = setInterval(() => {}, 1000);
-  try {
-    const { success } = await getLastValueFromAsyncIterableIterator(i);
-    return success ? 0 : 1;
-  } finally {
-    clearInterval(keepProcessAliveInterval);
-  }
+  const { success } = await getLastValueFromAsyncIterableIterator(i);
+  return success ? 0 : 1;
 }
 
 async function parseExecutorAndTarget(