Revert "Update test_weakref.py"

This reverts commit 9121fe3.

Author: prakashsellathurai

Lib/test/test_weakref.py

@@ -589,32 +589,6 @@ def __pow__(self, o, m=None):
         gc.collect()
 
         self.assertIsNone(ref(), "Leaked object in pow operation")
-        
-    def test_proxy_unref_richcompare_refcount(self):
-        class C:
-            def __eq__(self, o):
-                return NotImplemented
-    
-        # create dead proxy
-        o = C()
-        dead = weakref.proxy(o)
-        del o
-        gc.collect()
-    
-        # create live proxy
-        obj = C()
-        ref = weakref.ref(obj)
-        proxy = weakref.proxy(obj)
-    
-        try:
-            proxy == dead
-        except ReferenceError:
-            pass
-    
-        del proxy, obj, dead
-        gc.collect()
-    
-        self.assertIsNone(ref(), "Leaked object in richcompare operation")
 
     def test_getweakrefcount(self):
         o = C()