Removing POST data in GET request.

Removing POST data from HTTP GET method call for getting hub configuration. Removing the POST data as it is against HTTP standards. Tested without the payload and is working fine.
Thanks.

What unit tests, that you cannot add, did you have in mind? (I asked because I'm not an expert in grid code but hoped you may know you way around and and/or have good regression test in mind for this)

If you plan to add a check that would throw when currently it doesn't throw, prepare to have difficulties with that in the apache http client code.

The two commits combined look good to me. In selenium we prefer single purpose commits in the master branch, so it would help if you re-send these changes as one commit.

I will be offline for 10-15 days and then I'll look for a way to test this (please suggest what you think is a good way to test that this change doesn't break anything) and then push. Unless someone pushes before that.

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