Lint: Remove extra empty lines at end of files

tests/integration/modules/test_file.py

@@ -211,4 +211,3 @@ class FileModuleTest(ModuleCase):
         with salt.utils.fopen(self.myfile, 'r') as fp:
             content = fp.read()
         self.assertEqual(content, 'Hello' + os.linesep + 'Goodbye' + os.linesep)
-

tests/integration/output/test_output.py

@@ -165,4 +165,3 @@ class OutputReturnTest(ShellCase):
         expected = ['minion:', '    True']
         ret = self.run_salt('"minion" test.ping --static')
         self.assertEqual(ret, expected)
-

tests/unit/grains/test_core.py

@@ -596,4 +596,3 @@ PATCHLEVEL = 3
                                   MagicMock(return_value=resolv_mock)):
                     get_dns = core.dns()
                     self.assertEqual(get_dns, ret)
-