Revert "bpo-44645: Check for interrupts on any potentially backwards edge. (GH-27167)" (GH-27194) (#27195)

This reverts commit 000e70ad52.
(cherry picked from commit c90c591e51)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>

Lib/test/test_threading.py

@@ -1604,31 +1604,6 @@ class InterruptMainTests(unittest.TestCase):
         self.assertRaises(ValueError, _thread.interrupt_main, signal.NSIG)
         self.assertRaises(ValueError, _thread.interrupt_main, 1000000)
 
-    @threading_helper.reap_threads
-    def test_can_interrupt_tight_loops(self):
-        cont = True
-        started = False
-        iterations = 100_000_000
-
-        def worker():
-            nonlocal iterations
-            nonlocal started
-            started = True
-            while cont:
-                if iterations:
-                    iterations -= 1
-                else:
-                    return
-                pass
-
-        t = threading.Thread(target=worker)
-        t.start()
-        while not started:
-            pass
-        cont = False
-        t.join()
-        self.assertNotEqual(iterations, 0)
-
 
 class AtexitTests(unittest.TestCase):