Remove copies for wrap modes in GrTextureProducer.

GrTextureEffect now supports implementing wrap modes in shaders
for subsets and texture types with HW sampling restrictions.

Change-Id: I5c93ade044465e13c5f56f7437fbbe288db0a8a8
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/271056
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
26 files changed