remove dead defines from SkUserConfig.h

include/config/SkUserConfig.h

Index: include/config/SkUserConfig.h
diff --git a/include/config/SkUserConfig.h b/include/config/SkUserConfig.h
index 64263e2d8342b5a233f61fcead7e7ca416386d4d..60a69e15e95d00d68645d2678210bf938d057387 100644
--- a/include/config/SkUserConfig.h
+++ b/include/config/SkUserConfig.h
@@ -129,11 +129,6 @@
  */
 //#define SK_DEFAULT_IMAGE_CACHE_LIMIT (1024 * 1024)
 
-/* If defined, use CoreText instead of ATSUI on OS X.
-*/
-//#define SK_USE_MAC_CORE_TEXT
-
-
 /*  If zlib is available and you want to support the flate compression
     algorithm (used in PDF generation), define SK_ZLIB_INCLUDE to be the
     include path. Alternatively, define SK_SYSTEM_ZLIB to use the system zlib
@@ -151,17 +146,6 @@
  */
 //#define SK_SFNTLY_SUBSETTER "sfntly/subsetter/font_subsetter.h"
 
-/*  Define this to remove dimension checks on bitmaps. Not all blits will be
-    correct yet, so this is mostly for debugging the implementation.
- */
-#define SK_ALLOW_OVER_32K_BITMAPS
-
-/**
- *  To revert to int-only srcrect behavior in drawBitmapRect(ToRect),
- *  define this symbol.
- */
-//#define SK_SUPPORT_INT_SRCRECT_DRAWBITMAPRECT
-
 /*  Define this to set the upper limit for text to support LCD. Values that
     are very large increase the cost in the font cache and draw slower, without
     improving readability. If this is undefined, Skia will use its default