Revert "MIPS:[turbofan] Improve unordered comparisons for boolean materialization."

Revert "MIPS:[turbofan] Improve unordered comparisons for boolean materialization."

Reason for revert:
Fails mjsunit/asm/embenchen/box2d

BUG=

Committed: https://crrev.com/a18dee6bba0cf4c93c0890623055e04732c60d22
Cr-Commit-Position: refs/heads/master@{#26444}

[paul.l..., 2015-02-04 20:51:09]

paul.lind@imgtec.com changed reviewers:
+ akos.palfi@imgtec.com, balazs.kilvady@imgtec.com, danno@chromium.org,
dusan.milosavljevic@imgtec.com

[akos.palfi.imgtec, 2015-02-04 21:00:04]

lgtm

[paul.l..., 2015-02-04 21:05:38]

The CQ bit was checked by paul.lind@imgtec.com

[paul.l..., 2015-02-04 21:05:38]

The CQ bit was unchecked by paul.lind@imgtec.com

[paul.l..., 2015-02-04 21:05:40]

The CQ bit was checked by paul.lind@imgtec.com

[commit-bot: I haz the power, 2015-02-04 21:06:28]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/893993003/1

[commit-bot: I haz the power, 2015-02-04 21:28:48]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-04 21:29:08]

Patchset 1 (id:??) landed as
https://crrev.com/a18dee6bba0cf4c93c0890623055e04732c60d22
Cr-Commit-Position: refs/heads/master@{#26444}