Remove instanced rendering

Change-Id: I4219b1d23a647b849ee41fe71b53e1c45edfc3f4
Reviewed-on: https://skia-review.googlesource.com/82241
Reviewed-by: Chris Dalton <csmartdalton@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
45 files changed