Remove duplicate test_modify_ip

Author: akx

test/test_ip_manager.py

@@ -33,13 +33,6 @@ def test_modify_ip_oop(self, manager):
 
         assert ip_addr.ptr_record == 'my.ptr.record'
 
-    @responses.activate
-    def test_modify_ip(self, manager):
-        data = Mock.mock_put('ip_address/10.1.0.101')
-        ip_addr = manager.modify_ip('10.1.0.101', ptr_record='my.ptr.record')
-
-        assert ip_addr.ptr_record == 'my.ptr.record'
-
     @responses.activate
     def test_modify_ip(self, manager):
         data = Mock.mock_put('ip_address/10.1.0.101')