Removed double occupancy of argument `--memory`

scripts/docker_wrapper.py

@@ -61,7 +61,6 @@ def main():
         # Otherwise we cannot identify the Docker image because it is a
         # positional argument.
         parser.add_argument('--cpu-shares', dest='cpu-shares', action='append')
-        parser.add_argument('--memory', action='append')
         parser.add_argument('--cap-drop', dest='cap-drop', action='append')
         parser.add_argument('--hostname', action='append')
         parser.add_argument('--label', action='append')