Revert of infra_paths: keep cache paths super short to avoid long path issues

Revert of infra_paths: keep cache paths super short to avoid long path issues (patchset #1 id:1 of https://codereview.chromium.org/2102613002/ )

Reason for revert:
/b/cache dir on slaves were not cleaned up and now disk alerts are firing

please come up with a cleanup strategy before re-landing this CL

Original issue's description:
> infra_paths: keep cache paths super short to avoid long path issues
> 
> BUG=623575
> 
> Committed: https://chromium.googlesource.com/chromium/tools/depot_tools/+/aa0b3b6bd0111a0fd7aa6151f7b87a9247300cad

TBR=emso@chromium.org,sergiyb@chromium.org,tandrii@chromium.org,thakis@chromium.org,phajdan.jr@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=623575
Committed: https://chromium.googlesource.com/chromium/tools/depot_tools/+/460d557eecd35efcacb1a0d04b5c7a0ad0fcd84d

[nodir, 2016-06-27 21:07:07]

The CQ bit was checked by nodir@chromium.org

[nodir, 2016-06-27 21:07:08]

Created Revert of infra_paths: keep cache paths super short to avoid long path
issues

[commit-bot: I haz the power, 2016-06-27 21:07:17]

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, 2016-06-27 21:07:24]

Description was changed from

==========
Revert of infra_paths: keep cache paths super short to avoid long path issues
(patchset #1 id:1 of https://codereview.chromium.org/2102613002/ )

Reason for revert:
/b/cache dir on slaves were not cleaned up and now disk alerts are firing

please come up with a cleanup strategy before re-landing this CL

Original issue's description:
> infra_paths: keep cache paths super short to avoid long path issues
> 
> BUG=623575
> 
> Committed:
https://chromium.googlesource.com/chromium/tools/depot_tools/+/aa0b3b6bd0111a...

TBR=emso@chromium.org,sergiyb@chromium.org,tandrii@chromium.org,thakis@chromi...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=623575
==========

to

==========
Revert of infra_paths: keep cache paths super short to avoid long path issues
(patchset #1 id:1 of https://codereview.chromium.org/2102613002/ )

Reason for revert:
/b/cache dir on slaves were not cleaned up and now disk alerts are firing

please come up with a cleanup strategy before re-landing this CL

Original issue's description:
> infra_paths: keep cache paths super short to avoid long path issues
> 
> BUG=623575
> 
> Committed:
https://chromium.googlesource.com/chromium/tools/depot_tools/+/aa0b3b6bd0111a...

TBR=emso@chromium.org,sergiyb@chromium.org,tandrii@chromium.org,thakis@chromi...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=623575

Committed:
https://chromium.googlesource.com/chromium/tools/depot_tools/+/460d557eecd35e...
==========

[commit-bot: I haz the power, 2016-06-27 21:07:25]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/tools/depot_tools/+/460d557eecd35e...

[emso, 2016-06-28 05:44:26]

lgtm