Revert "fixup!: try awaiting subtests"

This reverts commit d5e777d.

Author: JakobJingleheimer

test/parallel/test-runner-subtest-methods.js

@@ -20,20 +20,18 @@ test('subtest should return a promise', async (t) => {
 });
 
 test('t.test[variant]() should return a promise', async (t) => {
-  const xfail = t.test.expectFailure('expectFailure subtest', () => { throw new Error('This should pass'); });
-  const only = t.test.only('only subtest');
-  const skip = t.test.skip('skip subtest');
-  const todo = t.test.todo('todo subtest');
-
-  assert.ok(isPromise(xfail));
-  assert.ok(isPromise(only));
-  assert.ok(isPromise(skip));
-  assert.ok(isPromise(todo));
-
-  await xfail;
-  await only;
-  await skip;
-  await todo;
+  assert.ok(isPromise(
+    t.test.expectFailure('expectFailure subtest', () => { throw new Error('This should pass'); })
+  ));
+  assert.ok(isPromise(
+    t.test.only('only subtest')
+  ));
+  assert.ok(isPromise(
+    t.test.skip('skip subtest')
+  ));
+  assert.ok(isPromise(
+    t.test.todo('todo subtest')
+  ));
 });
 
 test('nested subtests should have test variants', async (t) => {