Trailer Hitch Spacer HELP!!!

Ok well i have two questions…does the weight of the trailer hitch spacer count in the weight of the robot??
and number 2:
If it does can we modify it to make it lighter? I just dont want us to be overweight even more and it IS steel and not very light…is it possible that we could mill holes in it to lighten it…cant find it in FIRST Q and A.

Please help!!!
Thank you very much from team 1011!! go CRUSH!

1: No.

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