Delete SkARGBImageEncoder.

include/core/SkImageEncoder.h

Index: include/core/SkImageEncoder.h
diff --git a/include/core/SkImageEncoder.h b/include/core/SkImageEncoder.h
index 1ccfae0bf9ee1e82405bc4ef4a1dce7d4210983a..706d0c7bb2a1e5efc4591102a352d1fac70aab9d 100644
--- a/include/core/SkImageEncoder.h
+++ b/include/core/SkImageEncoder.h
@@ -100,11 +100,6 @@ protected:
 
 // All the encoders known by Skia. Note that, depending on the compiler settings,
 // not all of these will be available
-/** An ARGBImageEncoder will always write out
- *  bitmap.width() * bitmap.height() * 4
- *  bytes.
- */
-DECLARE_ENCODER_CREATOR(ARGBImageEncoder);
 DECLARE_ENCODER_CREATOR(JPEGImageEncoder);
 DECLARE_ENCODER_CREATOR(PNGImageEncoder);
 DECLARE_ENCODER_CREATOR(KTXImageEncoder);