Revert "Revert "remove kA1_Config, as it is no longer supported""

include/core/SkPicture.h

Index: include/core/SkPicture.h
diff --git a/include/core/SkPicture.h b/include/core/SkPicture.h
index e371c4369d1d9541525e34228c03c1b67be30f1d..42566eddbd474a96bf04261a25b0dd3f94724500 100644
--- a/include/core/SkPicture.h
+++ b/include/core/SkPicture.h
@@ -218,13 +218,14 @@ protected:
     // V13: add flag to drawBitmapRectToRect
     //      parameterize blurs by sigma rather than radius
     // V14: Add flags word to PathRef serialization
+    // V15: Remove A1 bitmpa config (and renumber remaining configs)
 #ifndef DELETE_THIS_CODE_WHEN_SKPS_ARE_REBUILT_AT_V13_AND_ALL_OTHER_INSTANCES_TOO
     static const uint32_t PRIOR_PRIOR_PICTURE_VERSION = 12;  // TODO: remove when .skps regenerated
 #endif
 #ifndef DELETE_THIS_CODE_WHEN_SKPS_ARE_REBUILT_AT_V14_AND_ALL_OTHER_INSTANCES_TOO
     static const uint32_t PRIOR_PICTURE_VERSION2 = 13;  // TODO: remove when .skps regenerated
 #endif
-    static const uint32_t PICTURE_VERSION = 14;
+    static const uint32_t PICTURE_VERSION = 15;
 
     // fPlayback, fRecord, fWidth & fHeight are protected to allow derived classes to
     // install their own SkPicturePlayback-derived players,SkPictureRecord-derived