Revert of Turn on bot_update for non-windows perf bots (https://codereview.chromium.org/318393004/)
Revert of Turn on bot_update for non-windows perf bots (https://codereview.chromium.org/318393004/)

Reason for revert:
Something weird is going on with the bootstrap tarball, reverting this for now.

Original issue's description:
> Turn on bot_update for non-windows perf bots
> 
> BUG=261741,380958
> 
> Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=275862

TBR=stip@chromium.org,dtu@chromium.org,agable@chromium.org,hinoka@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=261741,380958

Review URL: https://codereview.chromium.org/321953003

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@275873 0039d316-1c4b-4281-b951-d872f2087c98

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