remove SK_SUPPORT_LEGACY_COPYTO_CONFIG

TBR=robertphillips@google.com

Author: reed@google.com

Review URL: https://codereview.chromium.org/196413009

git-svn-id: http://skia.googlecode.com/svn/trunk@13780 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed