Revert of It's time to bring subprocess42 to depot_tools.

Revert of It's time to bring subprocess42 to depot_tools. (patchset #1 id:1 of https://codereview.chromium.org/2291223003/ )

Reason for revert:
Speculative revert because it might be breaking presubmit in depot_tools.

Original issue's description:
> It's time to bring subprocess42 to depot_tools.
> 
> The immediate need is to properly kill git fetch and its sub-spawned
> process from gclient.
> 
> R=maruel@chromium.org, hinoka@chromium.org
> BUG=635641
> 
> Committed: https://chromium.googlesource.com/chromium/tools/depot_tools/+/6d3c290164360907fe08784093e36314069e689f

TBR=hinoka@chromium.org,maruel@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=635641
Committed: https://chromium.googlesource.com/chromium/tools/depot_tools/+/7b787b8642623e39eafce83595c187660528af9f

[tandrii(chromium), 2016-08-31 17:58:17]

The CQ bit was checked by tandrii@chromium.org

[tandrii(chromium), 2016-08-31 17:58:17]

Created Revert of It's time to bring subprocess42 to depot_tools.

[commit-bot: I haz the power, 2016-08-31 17:58:26]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-08-31 17:58:34]

Description was changed from

==========
Revert of It's time to bring subprocess42 to depot_tools. (patchset #1 id:1 of
https://codereview.chromium.org/2291223003/ )

Reason for revert:
Speculative revert because it might be breaking presubmit in depot_tools.

Original issue's description:
> It's time to bring subprocess42 to depot_tools.
> 
> The immediate need is to properly kill git fetch and its sub-spawned
> process from gclient.
> 
> R=maruel@chromium.org, hinoka@chromium.org
> BUG=635641
> 
> Committed:
https://chromium.googlesource.com/chromium/tools/depot_tools/+/6d3c2901643609...

TBR=hinoka@chromium.org,maruel@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=635641
==========

to

==========
Revert of It's time to bring subprocess42 to depot_tools. (patchset #1 id:1 of
https://codereview.chromium.org/2291223003/ )

Reason for revert:
Speculative revert because it might be breaking presubmit in depot_tools.

Original issue's description:
> It's time to bring subprocess42 to depot_tools.
> 
> The immediate need is to properly kill git fetch and its sub-spawned
> process from gclient.
> 
> R=maruel@chromium.org, hinoka@chromium.org
> BUG=635641
> 
> Committed:
https://chromium.googlesource.com/chromium/tools/depot_tools/+/6d3c2901643609...

TBR=hinoka@chromium.org,maruel@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=635641

Committed:
https://chromium.googlesource.com/chromium/tools/depot_tools/+/7b787b8642623e...
==========

[commit-bot: I haz the power, 2016-08-31 17:58:35]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/tools/depot_tools/+/7b787b8642623e...