Revert of Add SIMD 128 alignment support to Heap. (patchset #3 id:40001 of https://codereview.chromium.org/1159453004/)

Reason for revert:
Breaks Linux - arm64 - sim - MSAN
TBR=jochen

Original issue's description:
> Add SIMD 128 alignment support to Heap.
> Adds SIMD 128 alignment sizes and masks.
> Adds support in Heap for SIMD alignments and fills.
> Reworks cctest so that each test independently aligns its allocation address, rather than depending on the previous tests ending state. Adds test cases for SIMD.
>
> LOG=N
> BUG=v8:4124

TBR=hpayer@chromium.org,jochen@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4124

Review URL: https://codereview.chromium.org/1169453003

Cr-Commit-Position: refs/heads/master@{#28768}