[3.13] gh-121832: Revert test skip introduced by GH-122150. (GH-122340) (#122342)

Revert test skip introduced by GH-122150.
(cherry picked from commit 863a92f)

Author: freakboy3742

Lib/test/test_types.py

@@ -2379,7 +2379,6 @@ def setUpClass(cls):
         import test.support.interpreters.channels
 
     @cpython_only
-    @unittest.skipIf(is_apple_mobile, "Fails on iOS due to test ordering; see #121832.")
     @no_rerun('channels (and queues) might have a refleak; see gh-122199')
     def test_slot_wrappers(self):
         rch, sch = interpreters.channels.create()