Revert "Fixes to alignment issues with regards to mapped vulkan memory."

This reverts commit 9fb6cf4c49b0f095e5cc005feb05b5522731421b.

Reason for revert: breaks fuchsia

Original change's description:
> Fixes to alignment issues with regards to mapped vulkan memory.
> 
> Bug: skia:
> Change-Id: Ida9813fe774580a6d157b8eb8d330488c8e8c4bc
> Reviewed-on: https://skia-review.googlesource.com/109483
> Commit-Queue: Greg Daniel <egdaniel@google.com>
> Reviewed-by: Jim Van Verth <jvanverth@google.com>

TBR=djsollen@google.com,egdaniel@google.com,jvanverth@google.com

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: skia:
Change-Id: If1223313cab27737ada401d1f3fe4b7ab849d03f
Reviewed-on: https://skia-review.googlesource.com/110040
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
9 files changed