Revert of clang/win update.py: Put gnuwin last in path.

Revert of clang/win update.py: Put gnuwin last in path. (patchset #1 id:1 of https://codereview.chromium.org/1887163003/ )

Reason for revert:
Didn't help: Cygwin is in the PATH when ssh'ing in, but not for normal build steps on the bot.

Original issue's description:
> clang/win update.py: Put gnuwin last in path.
>
> gnuwin's rm.exe doesn't seem to work with long path names on the bots for some
> reason.  The bots have cygwin installed and have a better working rm.exe
> earlier in the path, so try to use this.  (Local devs don't have long paths.)
>
> BUG=603364
> NOTRY=true
>
> Committed: https://crrev.com/051cfcb6697da79bd57d47e923505d2ec806cc3a
> Cr-Commit-Position: refs/heads/master@{#387463}

TBR=hans@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=603364
Committed: https://crrev.com/6678c06e28f094cf1d32d2b4cd723b8bb4cdc48c
Cr-Commit-Position: refs/heads/master@{#387595}

[Nico, 2016-04-15 14:15:16]

Created Revert of clang/win update.py: Put gnuwin last in path.

[commit-bot: I haz the power, 2016-04-15 14:15:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1888353003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1888353003/1

[commit-bot: I haz the power, 2016-04-15 14:16:02]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-15 14:18:06]

Description was changed from

==========
Revert of clang/win update.py: Put gnuwin last in path. (patchset #1 id:1 of
https://codereview.chromium.org/1887163003/ )

Reason for revert:
Didn't help: Cygwin is in the PATH when ssh'ing in, but not for normal build
steps on the bot.

Original issue's description:
> clang/win update.py: Put gnuwin last in path.
> 
> gnuwin's rm.exe doesn't seem to work with long path names on the bots for some
> reason.  The bots have cygwin installed and have a better working rm.exe
> earlier in the path, so try to use this.  (Local devs don't have long paths.)
> 
> BUG=603364
> NOTRY=true
> 
> Committed: https://crrev.com/051cfcb6697da79bd57d47e923505d2ec806cc3a
> Cr-Commit-Position: refs/heads/master@{#387463}

TBR=hans@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=603364
==========

to

==========
Revert of clang/win update.py: Put gnuwin last in path. (patchset #1 id:1 of
https://codereview.chromium.org/1887163003/ )

Reason for revert:
Didn't help: Cygwin is in the PATH when ssh'ing in, but not for normal build
steps on the bot.

Original issue's description:
> clang/win update.py: Put gnuwin last in path.
>
> gnuwin's rm.exe doesn't seem to work with long path names on the bots for some
> reason.  The bots have cygwin installed and have a better working rm.exe
> earlier in the path, so try to use this.  (Local devs don't have long paths.)
>
> BUG=603364
> NOTRY=true
>
> Committed: https://crrev.com/051cfcb6697da79bd57d47e923505d2ec806cc3a
> Cr-Commit-Position: refs/heads/master@{#387463}

TBR=hans@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=603364

Committed: https://crrev.com/6678c06e28f094cf1d32d2b4cd723b8bb4cdc48c
Cr-Commit-Position: refs/heads/master@{#387595}
==========

[commit-bot: I haz the power, 2016-04-15 14:18:07]

Patchset 1 (id:??) landed as
https://crrev.com/6678c06e28f094cf1d32d2b4cd723b8bb4cdc48c
Cr-Commit-Position: refs/heads/master@{#387595}