Revert of Protect the emptiness of Array prototype elements with a PropertyCell.

Revert of Protect the emptiness of Array prototype elements with a PropertyCell. (patchset #7 id:120001 of https://codereview.chromium.org/1092043002/)

Reason for revert:
MAC GCSTRESS failure on new test.

Original issue's description:
> Protect the emptiness of Array prototype elements with a PropertyCell.
>
> Not just emptiness, but also a particular structure.
>
> BUG=v8:4044
> LOG=N

TBR=jkummerow@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4044
Committed: https://crrev.com/15b98a3328b2a2aafb9dfd73287dd7b268e51455
Cr-Commit-Position: refs/heads/master@{#27998}

[mvstanton, 2015-04-22 09:56:19]

Created Revert of Protect the emptiness of Array prototype elements with a
PropertyCell.

[commit-bot: I haz the power, 2015-04-22 09:56:28]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1099203004/1

[commit-bot: I haz the power, 2015-04-22 09:56:50]

Committed patchset #1 (id:1)

[Jakob Kummerow, 2015-04-22 10:28:29]

rubberstamp LGTM

[Michael Achenbach, 2015-04-22 10:35:08]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1052253003/ by machenbach@chromium.org.

The reason for reverting is: This was probably an infrastructure problem caused
by the mac ninja/goma switch..

[commit-bot: I haz the power, 2015-04-22 13:19:20]

Patchset 1 (id:??) landed as
https://crrev.com/15b98a3328b2a2aafb9dfd73287dd7b268e51455
Cr-Commit-Position: refs/heads/master@{#27998}