remove Redis and ConnectionPool __eq__ comparison

After further thought this was a bad idea. Just because two connection
pools share the same connection arguments does not make them equal.
It would seem quite odd if pool_a == pool_b yet pool_a.disconnect() doesn't
close all of pool_b's connections.

Ref #1240
Fixes #1277
Fixes #1275
Fixes #1267
Fixes #1273

redis/client.py

@@ -746,12 +746,6 @@ def __init__(self, host='localhost', port=6379,
     def __repr__(self):
         return "%s<%s>" % (type(self).__name__, repr(self.connection_pool))
 
-    def __eq__(self, other):
-        return (
-            isinstance(other, self.__class__)
-            and self.connection_pool == other.connection_pool
-        )
-
     def set_response_callback(self, command, callback):
         "Set a custom Response Callback"
         self.response_callbacks[command] = callback

redis/connection.py

@@ -1100,12 +1100,6 @@ def __repr__(self):
             repr(self.connection_class(**self.connection_kwargs)),
         )
 
-    def __eq__(self, other):
-        return (
-            isinstance(other, self.__class__)
-            and self.connection_kwargs == other.connection_kwargs
-        )
-
     def reset(self):
         self._lock = threading.RLock()
         self._created_connections = 0

tests/test_connection_pool.py

@@ -88,47 +88,6 @@ def test_repr_contains_db_info_unix(self):
                     'path=/abc,db=1,client_name=test-client>>')
         assert repr(pool) == expected
 
-    def test_pool_equality(self):
-        connection_kwargs = {'host': 'localhost', 'port': 6379, 'db': 1}
-        pool1 = self.get_pool(connection_kwargs=connection_kwargs,
-                              connection_class=redis.Connection)
-        pool2 = self.get_pool(connection_kwargs=connection_kwargs,
-                              connection_class=redis.Connection)
-        assert pool1 == pool2
-
-    def test_pools_unequal_if_different_types(self):
-        connection_kwargs = {'host': 'localhost', 'port': 6379, 'db': 1}
-        pool = self.get_pool(connection_kwargs=connection_kwargs,
-                             connection_class=redis.Connection)
-        assert pool != 0
-
-    def test_pools_unequal_if_different_hosts(self):
-        connection_kwargs1 = {'host': 'localhost', 'port': 6379, 'db': 1}
-        connection_kwargs2 = {'host': '127.0.0.1', 'port': 6379, 'db': 1}
-        pool1 = self.get_pool(connection_kwargs=connection_kwargs1,
-                              connection_class=redis.Connection)
-        pool2 = self.get_pool(connection_kwargs=connection_kwargs2,
-                              connection_class=redis.Connection)
-        assert pool1 != pool2
-
-    def test_pools_unequal_if_different_ports(self):
-        connection_kwargs1 = {'host': 'localhost', 'port': 6379, 'db': 1}
-        connection_kwargs2 = {'host': 'localhost', 'port': 6380, 'db': 1}
-        pool1 = self.get_pool(connection_kwargs=connection_kwargs1,
-                              connection_class=redis.Connection)
-        pool2 = self.get_pool(connection_kwargs=connection_kwargs2,
-                              connection_class=redis.Connection)
-        assert pool1 != pool2
-
-    def test_pools_unequal_if_different_dbs(self):
-        connection_kwargs1 = {'host': 'localhost', 'port': 6379, 'db': 1}
-        connection_kwargs2 = {'host': 'localhost', 'port': 6379, 'db': 2}
-        pool1 = self.get_pool(connection_kwargs=connection_kwargs1,
-                              connection_class=redis.Connection)
-        pool2 = self.get_pool(connection_kwargs=connection_kwargs2,
-                              connection_class=redis.Connection)
-        assert pool1 != pool2
-
 
 class TestBlockingConnectionPool(object):
     def get_pool(self, connection_kwargs=None, max_connections=10, timeout=20):