Revert "test_runner: do not invoke after hook when test is empty"

This reverts commit a53fd95.

This caused a regression because the original issue this commit
was attempting to fix is not a bug. The after() hook should
always run.

Fixes: #51997
PR-URL: #51998
Reviewed-By: Matthew Aitken <maitken033380023@gmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>

lib/internal/test_runner/test.js

@@ -595,9 +595,7 @@ class Test extends AsyncResource {
 
     const { args, ctx } = this.getRunArgs();
     const after = async () => {
-      // If its a root test then check for global after hook else check for parent after hook
-      const check = this.parent ? this.parent.hooks.after.length > 0 : this.hooks.after.length > 0;
-      if (check) {
+      if (this.hooks.after.length > 0) {
         await this.runHook('after', { __proto__: null, args, ctx });
       }
     };