Revert "pythonGH-66285: skip asyncio fork tests for platforms without md5 hash (python#99745)"

This reverts commit 679d963.

Author: kumaraditya303

Lib/test/test_asyncio/test_unix_events.py

@@ -18,7 +18,6 @@
 from test.support import os_helper
 from test.support import socket_helper
 from test.support import wait_process
-from test.support import hashlib_helper
 
 if sys.platform == 'win32':
     raise unittest.SkipTest('UNIX only')
@@ -1894,7 +1893,6 @@ async def test_fork_not_share_event_loop(self):
             self.assertNotEqual(child_loop, id(loop))
             wait_process(pid, exitcode=0)
 
-    @hashlib_helper.requires_hashdigest('md5')
     def test_fork_signal_handling(self):
         # Sending signal to the forked process should not affect the parent
         # process
@@ -1932,7 +1930,6 @@ async def func():
         self.assertFalse(parent_handled.is_set())
         self.assertTrue(child_handled.is_set())
 
-    @hashlib_helper.requires_hashdigest('md5')
     def test_fork_asyncio_run(self):
         ctx = multiprocessing.get_context('fork')
         manager = ctx.Manager()
@@ -1949,7 +1946,6 @@ async def child_main():
 
         self.assertEqual(result.value, 42)
 
-    @hashlib_helper.requires_hashdigest('md5')
     def test_fork_asyncio_subprocess(self):
         ctx = multiprocessing.get_context('fork')
         manager = ctx.Manager()