remove SK_SUPPORT_DEEPCOPYTO_CONFIG code -- no longer used

src/core/SkBitmap.cpp

Index: src/core/SkBitmap.cpp
diff --git a/src/core/SkBitmap.cpp b/src/core/SkBitmap.cpp
index 297e613a7ec7219a09c0aaaf8f1c5e91d56a872b..199f212c8696c7e7a1e6400bff6ac75f33b37744 100644
--- a/src/core/SkBitmap.cpp
+++ b/src/core/SkBitmap.cpp
@@ -1148,7 +1148,8 @@ bool SkBitmap::copyTo(SkBitmap* dst, SkColorType dstColorType,
     return true;
 }
 
-bool SkBitmap::deepCopyTo(SkBitmap* dst, Config dstConfig) const {
+bool SkBitmap::deepCopyTo(SkBitmap* dst) const {
+    const SkBitmap::Config dstConfig = this->config();
     const SkColorType dstCT = SkBitmapConfigToColorType(dstConfig);
 
     if (!this->canCopyTo(dstCT)) {
@@ -1190,10 +1191,6 @@ bool SkBitmap::deepCopyTo(SkBitmap* dst, Config dstConfig) const {
     }
 }
 
-bool SkBitmap::deepCopyTo(SkBitmap* dst) const {
-    return this->deepCopyTo(dst, this->config());
-}
-
 ///////////////////////////////////////////////////////////////////////////////
 ///////////////////////////////////////////////////////////////////////////////