Remove sync hack

tests/telethon/test_helpers.py

@@ -14,43 +14,6 @@ def test_strip_text():
     # I can't interpret the rest of the code well enough yet
 
 
-class TestSyncifyAsyncContext:
-    class NoopContextManager:
-        def __init__(self, loop):
-            self.count = 0
-            self.loop = loop
-
-        async def __aenter__(self):
-            self.count += 1
-            return self
-
-        async def __aexit__(self, exc_type, *args):
-            assert exc_type is None
-            self.count -= 1
-
-        __enter__ = helpers._sync_enter
-        __exit__ = helpers._sync_exit
-
-    def test_sync_acontext(self, event_loop):
-        contm = self.NoopContextManager(event_loop)
-        assert contm.count == 0
-
-        with contm:
-            assert contm.count == 1
-
-        assert contm.count == 0
-
-    @pytest.mark.asyncio
-    async def test_async_acontext(self, event_loop):
-        contm = self.NoopContextManager(event_loop)
-        assert contm.count == 0
-
-        async with contm:
-            assert contm.count == 1
-
-        assert contm.count == 0
-
-
 def test_generate_key_data_from_nonce():
     gkdfn = helpers.generate_key_data_from_nonce