Revert of Vector ICs: platform support for vector-based stores.

Revert of Vector ICs: platform support for vector-based stores. (patchset #7 id:120001 of https://codereview.chromium.org/1328603003/ )

Reason for revert:
[Sheriff] Breaks compile on arm:
http://build.chromium.org/p/client.v8/builders/V8%20Arm%20-%20builder/builds/6590

Original issue's description:
> Vector ICs: platform support for vector-based stores.
>
> The last changes for vector store functionality, they are in 3 areas:
>
> 1) The new vector [keyed] store code stubs - implementation.
> 2) IC and handler compiler adjustments
> 3) Odds and ends. A change in ast.cc, a test update, a small Oracle fix.
>
> BUG=
>
> Committed: https://crrev.com/63af1b3aec6547e7cdf502666ff79c562de8b679
> Cr-Commit-Position: refs/heads/master@{#30570}

TBR=bmeurer@chromium.org,jkummerow@chromium.org,mvstanton@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Committed: https://crrev.com/d51c588524a2255d7c7b4f7aecab2c5a055f4e1b
Cr-Commit-Position: refs/heads/master@{#30571}

[Michael Achenbach, 2015-09-03 17:43:48]

Created Revert of Vector ICs: platform support for vector-based stores.

[commit-bot: I haz the power, 2015-09-03 17:44:04]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1303053004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1303053004/1

[commit-bot: I haz the power, 2015-09-03 17:44:23]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-09-03 17:44:42]

Patchset 1 (id:??) landed as
https://crrev.com/d51c588524a2255d7c7b4f7aecab2c5a055f4e1b
Cr-Commit-Position: refs/heads/master@{#30571}