Remove GpuLayerCacheTest

The gpu code doesn't have a layer cache anymore to test.

Change-Id: Iec931112e5e12c90f2cad0c6012dfd1d0f14ad25
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/213665
Commit-Queue: Ben Wagner <bungeman@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
Auto-Submit: Ben Wagner <bungeman@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
2 files changed