Revert "[Scudo] Use GWP-ASan's aligned allocations and fixup postalloc hooks." am: 51d3beeee1 am: d6eb0daeda am: 5381862f13

Original change: https://android-review.googlesource.com/c/platform/external/scudo/+/1698905

Change-Id: I96757a4e4bab5581c2ca32a57a83a3f307543a80