Revert "Use a VMA block size of only 64k"

This reverts commit 93f245da00971442509c7059948683691d9e1eae.

Reason for revert: b/328318333

Original change's description:
> Use a VMA block size of only 64k
>
> Using 64KB (down from 4MB) has been found to reduce memory usage without
> negatively affecting performance.
>
> Bug: 326515473
> Bug: 321962001
> Change-Id: Ie6eb57b7d534109ddce29412c88da549a4bf2624
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/819796
> Commit-Queue: Greg Daniel <egdaniel@google.com>
> Reviewed-by: Greg Daniel <egdaniel@google.com>
> Auto-Submit: Leon Scroggins <scroggo@google.com>

Bug: 326515473
Bug: 321962001
Change-Id: I3c5cc81c52ab256bf93d72048e82d2f9a2874900
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/846337
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Leon Scroggins <scroggo@google.com>
1 file changed