This reverts commit c14b3e4d.

Reason for revert: https://crbug.com/1335195

Original change's description:
> [regalloc] add hint for operands in gap moves.
>
> To eliminate unnecessary move instructions from register to fixed register. We check the fixed register hint for operands in move gaps
> when building LiveRanges. If a to_operand has a hint_operand (with fixed register), then set the hint_operand for from_operand too. This can avoid the register allocator ignore hint information about fixed register.
>
> Bug: v8:12909
> Change-Id: I17f9afa484ee08de8ac1ab42945caba2c362fc9e
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3669019
> Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
> Commit-Queue: Jialu Zhang <jialu.zhang@intel.com>
> Cr-Commit-Position: refs/heads/main@{#80844}

Bug: v8:12909
Change-Id: Iedba9244a75074e448c5e85880cc202866b91e71
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702335
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#81126}