Revert of Make the static clang/win ToT bots do official builds.

Revert of Make the static clang/win ToT bots do official builds. (patchset #1 id:1 of https://codereview.chromium.org/1241913003/)

Reason for revert:
Looks like the bot doesn't have a src-internal checkout and this isn't enough to give it one. Reverting until src-internalness is figured out.

Original issue's description:
> Make the static clang/win ToT bots do official builds.
> 
> That makes them match the regular win/clang bots.
> 
> (It means we lose waterfall coverage for unofficial static library builds,
> but coverage from unofficial component builders hopefully gives us most of
> that.)
> 
> BUG=82385
> TBR=akuegel
> 
> Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=296026

TBR=hans@chromium.org,rnk@chromium.org,akuegel@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=82385
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=296028

[Nico, 2015-07-15 20:51:43]

Created Revert of Make the static clang/win ToT bots do official builds.

[commit-bot: I haz the power, 2015-07-15 20:52:02]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1238993002/1

[commit-bot: I haz the power, 2015-07-15 20:52:13]

Committed patchset #1 (id:1) as
http://src.chromium.org/viewvc/chrome?view=rev&revision=296028

[hans, 2015-07-15 21:04:26]

I think you need something like this:
https://codereview.chromium.org/1004523002/

[Adrian Kuegel, 2015-07-16 07:45:36]

lgtm