remove SK_SUPPORT_LEGACY_CLIP_REGIONOPS for android

... to land *after* we land the change in master to use SkClipOps

BUG=skia:

Change-Id: I58d73866324aae9b9693afcd2a81aef503241a46
NOTRY=True
TBR=djsollen
Reviewed-on: https://skia-review.googlesource.com/5678
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Mike Reed <reed@google.com>
diff --git a/gn/android_framework_defines.gni b/gn/android_framework_defines.gni
index 3c398dc..c959f6a 100644
--- a/gn/android_framework_defines.gni
+++ b/gn/android_framework_defines.gni
@@ -13,7 +13,6 @@
   "SK_SUPPORT_LEGACY_DRAWFILTER",
   "SK_IGNORE_GPU_DITHER",
   "SK_SUPPORT_LEGACY_CANVAS_IS_REFCNT",
-  "SK_SUPPORT_LEGACY_CLIP_REGIONOPS",
   "SK_SUPPORT_LEGACY_IMAGE_ENCODER_CLASS",
   "SK_SUPPORT_LEGACY_SHADER_ISABITMAP",
   "SK_SUPPORT_LEGACY_EMBOSSMASKFILTER",