Revert of [x64] Use vcvtlsi2sd when AVX is enabled

Revert of [x64] Use vcvtlsi2sd when AVX is enabled (patchset #1 id:1 of https://codereview.chromium.org/1404903004/ )

Reason for revert:
Caused a crash on Windows

Original issue's description:
> [x64] Use vcvtlsi2sd when AVX is enabled
>
> BUG=v8:4406
> LOG=N
>
> Committed: https://crrev.com/adcbe619a959fe1d8f21d06fbf5984868c4f6b9a
> Cr-Commit-Position: refs/heads/master@{#31276}

TBR=bmeurer@chromium.org,danno@chromium.org,yurys@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4406
Committed: https://crrev.com/ad1e05704967ad336887edd8942e5d158f91d3f8
Cr-Commit-Position: refs/heads/master@{#31277}

[alph, 2015-10-15 06:08:08]

Created Revert of [x64] Use vcvtlsi2sd when AVX is enabled

[commit-bot: I haz the power, 2015-10-15 06:08:24]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1396283004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1396283004/1

[commit-bot: I haz the power, 2015-10-15 06:08:35]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-15 06:09:07]

Patchset 1 (id:??) landed as
https://crrev.com/ad1e05704967ad336887edd8942e5d158f91d3f8
Cr-Commit-Position: refs/heads/master@{#31277}