eliminate code related to SkBitmap::Config

src/image/SkImagePriv.cpp

Index: src/image/SkImagePriv.cpp
diff --git a/src/image/SkImagePriv.cpp b/src/image/SkImagePriv.cpp
index f5b785877c7374f427b11c8a80e439195fa9462c..bde47e71eba07853b720d75be2ce6bae779d5cf8 100644
--- a/src/image/SkImagePriv.cpp
+++ b/src/image/SkImagePriv.cpp
@@ -9,45 +9,6 @@
 #include "SkCanvas.h"
 #include "SkPicture.h"
 
-#ifdef SK_SUPPORT_LEGACY_BITMAP_CONFIG
-SkBitmap::Config SkColorTypeToBitmapConfig(SkColorType colorType) {
-    switch (colorType) {
-        case kAlpha_8_SkColorType:
-            return SkBitmap::kA8_Config;
-
-        case kARGB_4444_SkColorType:
-            return SkBitmap::kARGB_4444_Config;
-
-        case kRGB_565_SkColorType:
-            return SkBitmap::kRGB_565_Config;
-
-        case kN32_SkColorType:
-            return SkBitmap::kARGB_8888_Config;
-
-        case kIndex_8_SkColorType:
-            return SkBitmap::kIndex8_Config;
-
-        default:
-            // break for unsupported colortypes
-            break;
-    }
-    return SkBitmap::kNo_Config;
-}
-
-SkColorType SkBitmapConfigToColorType(SkBitmap::Config config) {
-    static const SkColorType gCT[] = {
-        kUnknown_SkColorType,   // kNo_Config
-        kAlpha_8_SkColorType,   // kA8_Config
-        kIndex_8_SkColorType,   // kIndex8_Config
-        kRGB_565_SkColorType,   // kRGB_565_Config
-        kARGB_4444_SkColorType, // kARGB_4444_Config
-        kN32_SkColorType,   // kARGB_8888_Config
-    };
-    SkASSERT((unsigned)config < SK_ARRAY_COUNT(gCT));
-    return gCT[config];
-}
-#endif
-
 SkImage* SkNewImageFromBitmap(const SkBitmap& bm, bool canSharePixelRef) {
     const SkImageInfo info = bm.info();
     if (kUnknown_SkColorType == info.colorType()) {