Revert of Enable bot_update Win7 GPU perf bots on chromium.perf (https://codereview.chromium.org/307113003/)
Revert of Enable bot_update Win7 GPU perf bots on chromium.perf (https://codereview.chromium.org/307113003/)

Reason for revert:
bot update times out on initial clone from cache into src

Original issue's description:
> Enable bot_update Win7 GPU perf bots on chromium.perf
> 
> These have been failing gclient revert for a while so lets just see if
> bot_update will fix them.
> 
> Reland of https://codereview.chromium.org/310513003/, which had a typo
> 
> BUG=374817,261346
> 
> Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=273933

TBR=agable@chromium.org,hinoka@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=374817,261346

Review URL: https://codereview.chromium.org/306013005

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@273941 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build