Remove copyTo() legacy API flag from bzl

NOTRY=true

Bug: skia:6464
Change-Id: Ia3935998960054df9e54cfb2aead66549c629c04
Reviewed-on: https://skia-review.googlesource.com/15001
Reviewed-by: Matt Sarett <msarett@google.com>
Commit-Queue: Matt Sarett <msarett@google.com>
1 file changed