Remove integration test that verified cache is not created for the aws --version.

Author: aemous

tests/integration/test_cli.py

@@ -310,15 +310,6 @@ def test_version(self):
         )
         self.assertTrue(re.fullmatch(user_agent_regex, version_output))
 
-    def test_version_does_not_create_cache_directory(self):
-        # Regression test: --version should not create any files/directories.
-        with tempfile.TemporaryDirectory() as tmpdir:
-            env = os.environ.copy()
-            env['HOME'] = tmpdir
-            aws('--version', env_vars=env)
-            aws_dir = os.path.join(tmpdir, '.aws')
-            self.assertFalse(os.path.exists(aws_dir))
-
     def test_version_with_exec_env(self):
         base_env_vars = os.environ.copy()
         base_env_vars['AWS_EXECUTION_ENV'] = 'an_execution_env'