fix flake

Author: Andy Landy

traceback_with_variables/default_global_hooks.py

@@ -1,9 +1,5 @@
 from traceback_with_variables.color import ColorSchemes
-from traceback_with_variables.core import (
-    hide,
-    show,
-    skip,
-)
+from traceback_with_variables.core import skip
 from traceback_with_variables.global_hooks import (
     global_print_exc_in_ipython,
     global_print_exc,