Disable the MSAA atlas mode for CCPR

We have a long term path rendering plan that uses dynamic MSAA instead.
This CL is a test to see if we can drop support for CCPR now.

Change-Id: I1bff3ca3143a6b453b65a7932a1805c195922805
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/354036
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
2 files changed