Revert "[TabStrip] Cleanup mStripTabsVisuallyOrdered and usage."

This reverts commit 1381563fe77778dd2206f73119cc68e2fdbd8e43.

Reason for revert: More work needed for reorder

Original change's description:
> [TabStrip] Cleanup mStripTabsVisuallyOrdered and usage.
>
> Change-Id: Ib6b1e4abd8e5cc1a804ff1d125f170036421a2ee
> Bug: 40268645
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5939480
> Reviewed-by: Neil Coronado <nemco@google.com>
> Commit-Queue: Sirisha Kavuluru <skavuluru@google.com>
> Code-Coverage: findit-for-me@appspot.gserviceaccount.com <findit-for-me@appspot.gserviceaccount.com>
> Cr-Commit-Position: refs/heads/main@{#1372419}

Bug: 40268645
Change-Id: I69a0ea69c813288d4dc2c72ddd2775ae1ff97abe
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5958333
Commit-Queue: Sirisha Kavuluru <skavuluru@google.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Neil Coronado <nemco@google.com>
Cr-Commit-Position: refs/heads/main@{#1373034}