Revert of Add subscribeUniform extension pipeline

Revert of Add subscribeUniform extension pipeline (patchset #7 id:460001 of https://codereview.chromium.org/659903002/)

Reason for revert:
buildbot memory failure on Linux Tests

Original issue's description:
> Add subscribeUniform extension pipeline
>
> BUG=422978
>
> Committed: https://crrev.com/80b40cc8eab5e6bef6221c0bc5c1d006059acd8f
> Cr-Commit-Position: refs/heads/master@{#303050}

TBR=kbr@chromium.org,bajones@chromium.org,piman@chromium.org,brianderson@chromium.org
BUG=422978
Committed: https://crrev.com/1650e5447c7382948dc9659c39965489ed3af20a
Cr-Commit-Position: refs/heads/master@{#303131}

[orglofch, 2014-11-06 21:56:46]

Created Revert of Add subscribeUniform extension pipeline

[commit-bot: I haz the power, 2014-11-06 21:57:25]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/706903004/1

[commit-bot: I haz the power, 2014-11-06 21:57:27]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-11-06 21:57:28]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[brianderson, 2014-11-06 22:00:30]

lgtm

[orglofch, 2014-11-06 22:00:42]

The CQ bit was checked by orglofch@chromium.org

[commit-bot: I haz the power, 2014-11-06 22:02:05]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/706903004/1

[commit-bot: I haz the power, 2014-11-07 00:07:26]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-11-07 00:08:12]

Patchset 1 (id:??) landed as
https://crrev.com/1650e5447c7382948dc9659c39965489ed3af20a
Cr-Commit-Position: refs/heads/master@{#303131}