Revert of [compiler] Load elimination now traverses CheckTaggedPointer. (patchset #1 id:1 of https://codereview.chromium.org/2104893002/ )

Reason for revert:
Clusterfuzz breakage (https://bugs.chromium.org/p/chromium/issues/detail?id=624756)

Original issue's description:
> [compiler] Load elimination now traverses CheckTaggedPointer.
>
> It also dereferences the inputs of StoreField, if those were
> CheckTaggedPointers. Tested manually.
>
> BUG=
>
> Committed: https://crrev.com/f416886358c0aeaa5b4d1e83d9c7d6bb8b0e7f2f
> Cr-Commit-Position: refs/heads/master@{#37330}

TBR=bmeurer@chromium.org,bgeron@google.com
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=

Review-Url: https://codereview.chromium.org/2113623002
Cr-Commit-Position: refs/heads/master@{#37438}