Revert of [CT] Use zips of SKPs to speed up "isolate tests" in recipes

Revert of [CT] Use zips of SKPs to speed up "isolate tests" in recipes (patchset #3 id:40001 of https://codereview.chromium.org/1689093004/ )

Reason for revert:
The zipping and unzipping process seems to take longer than the isolate binary did for >100k files. Reverting this experiment.
I am instead going to break up the "isolate tests" steps into multiple steps if >100k files.

Original issue's description:
> [CT] Use zips of SKPs to speed up "isolate tests" in recipes.
> 
> Context: The isolate binary is slow when it deals with >100k files (see https://github.com/luci/luci-go/issues/9)
> This change compresses the 1M SKPs into 100 zip files.
> 
> See related .isolate change in https://codereview.chromium.org/1691023002/
> 
> BUG=
> 
> Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=298749

TBR=borenet@google.com,rmistry@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=298755

[rmistry1, 2016-02-12 12:03:17]

Created Revert of [CT] Use zips of SKPs to speed up "isolate tests" in recipes

[commit-bot: I haz the power, 2016-02-12 12:03:29]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1695723002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1695723002/1

[commit-bot: I haz the power, 2016-02-12 12:03:36]

Description was changed from

==========
Revert of [CT] Use zips of SKPs to speed up "isolate tests" in recipes (patchset
#3 id:40001 of https://codereview.chromium.org/1689093004/ )

Reason for revert:
The zipping and unzipping process seems to take longer than the isolate binary
did for >100k files. Reverting this experiment.
I am instead going to break up the "isolate tests" steps into multiple steps if
>100k files.

Original issue's description:
> [CT] Use zips of SKPs to speed up "isolate tests" in recipes.
> 
> Context: The isolate binary is slow when it deals with >100k files (see
https://github.com/luci/luci-go/issues/9)
> This change compresses the 1M SKPs into 100 zip files.
> 
> See related .isolate change in https://codereview.chromium.org/1691023002/
> 
> BUG=
> 
> Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=298749

TBR=borenet@google.com,rmistry@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
==========

to

==========
Revert of [CT] Use zips of SKPs to speed up "isolate tests" in recipes (patchset
#3 id:40001 of https://codereview.chromium.org/1689093004/ )

Reason for revert:
The zipping and unzipping process seems to take longer than the isolate binary
did for >100k files. Reverting this experiment.
I am instead going to break up the "isolate tests" steps into multiple steps if
>100k files.

Original issue's description:
> [CT] Use zips of SKPs to speed up "isolate tests" in recipes.
> 
> Context: The isolate binary is slow when it deals with >100k files (see
https://github.com/luci/luci-go/issues/9)
> This change compresses the 1M SKPs into 100 zip files.
> 
> See related .isolate change in https://codereview.chromium.org/1691023002/
> 
> BUG=
> 
> Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=298749

TBR=borenet@google.com,rmistry@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=298755
==========

[commit-bot: I haz the power, 2016-02-12 12:03:37]

Committed patchset #1 (id:1) as
http://src.chromium.org/viewvc/chrome?view=rev&revision=298755