TST: removes name collision warning test

Author: deniederhut

pandas/tests/dtypes/test_generic.py

@@ -48,7 +48,6 @@ def test_abc_types(self):
 
 
 def test_setattr_warnings():
-    # GH5904 - Suggestion: Warning for DataFrame colname-methodname clash
     # GH7175 - GOTCHA: You can't use dot notation to add a column...
     d = {'one': pd.Series([1., 2., 3.], index=['a', 'b', 'c']),
          'two': pd.Series([1., 2., 3., 4.], index=['a', 'b', 'c', 'd'])}
@@ -78,7 +77,3 @@ def test_setattr_warnings():
         #  warn when setting column to nonexistent name
         df.four = df.two + 2
         assert df.four.sum() > df.two.sum()
-
-    with tm.assert_produces_warning(UserWarning):
-        #  warn when column has same name as method
-        df['sum'] = df.two