Remove unused 'time' import from test_resource.py

Removed unused import of the 'time' module.

Author: Shrey-N

Lib/test/test_resource.py

@@ -4,7 +4,6 @@
 from test import support
 from test.support import import_helper
 from test.support import os_helper
-import time
 
 resource = import_helper.import_module('resource')