Reverse sense of convex-quad-fix compiler flag

https://codereview.appspot.com/7206045/



git-svn-id: http://skia.googlecode.com/svn/trunk/gyp@7349 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/common_conditions.gypi b/common_conditions.gypi
index ff4caf8..d61cc94 100644
--- a/common_conditions.gypi
+++ b/common_conditions.gypi
@@ -4,7 +4,6 @@
   'defines': [
     'SK_ALLOW_STATIC_GLOBAL_INITIALIZERS=<(skia_static_initializers)',
 #    'SK_SUPPORT_HINTING_SCALE_FACTOR',
-     'SK_REDEFINE_ROOT2OVER2_TO_MAKE_ARCTOS_CONVEX',
   ],
   'conditions' : [
     ['skia_gpu == 1',