Revert "Switch atlas clients over to using absolute texture coordinates"

This reverts commit e84c087e621978e6d298b8ca950521601a0366cb.

Reason for revert: ANGLE is unhappy

Original change's description:
> Switch atlas clients over to using absolute texture coordinates
> 
> This is a prerequisite for being able to resize the atlas with impunity.
> 
> Change-Id: I509816c8d6f38fbc92fa39aeab303b42ab09f58b
> Reviewed-on: https://skia-review.googlesource.com/37560
> Reviewed-by: Robert Phillips <robertphillips@google.com>
> Commit-Queue: Robert Phillips <robertphillips@google.com>

TBR=egdaniel@google.com,jvanverth@google.com,robertphillips@google.com,brianosman@google.com

Change-Id: I329efd642c22e11a5c576a4632fc557759b200d5
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/38400
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
11 files changed