Remove codeop test since it is not really worth it

Author: johnslavik

Lib/test/test_codeop.py

@@ -6,9 +6,8 @@
 import warnings
 from test.support import warnings_helper
 from textwrap import dedent
-from unittest.mock import Mock
 
-from codeop import compile_command, _maybe_compile, PyCF_DONT_IMPLY_DEDENT
+from codeop import compile_command, PyCF_DONT_IMPLY_DEDENT
 
 class CodeopTests(unittest.TestCase):
 
@@ -325,13 +324,6 @@ def foo(x,x):
                    pass
             """), "duplicate parameter 'x' in function definition")
 
-    def test_system_error_not_chained(self):
-        system_error = SystemError("compiler bug")
-        compiler = Mock(side_effect=[_IncompleteInputError("incomplete"), system_error])
-        with self.assertRaises(SystemError) as cm:
-            _maybe_compile(compiler, "x", "<input>", "single", flags=0)
-        self.assertIs(cm.exception, system_error)
-        self.assertTrue(cm.exception.__suppress_context__)
 
 
 if __name__ == "__main__":