Remove image decoder and encoder autoregistration

src/utils/SkBitmapHasher.cpp

Index: src/utils/SkBitmapHasher.cpp
diff --git a/src/utils/SkBitmapHasher.cpp b/src/utils/SkBitmapHasher.cpp
index 32ff1cb0816f664587872fa15b1f691891ec64fb..828b188e0598cd406004bedfadf408450a2b159c 100644
--- a/src/utils/SkBitmapHasher.cpp
+++ b/src/utils/SkBitmapHasher.cpp
@@ -8,8 +8,7 @@
 #include "SkBitmap.h"
 #include "SkBitmapHasher.h"
 #include "SkEndian.h"
-#include "SkImageEncoder.h"
-
+#include "SkImageEncoder_argb.h"
 #include "SkMD5.h"
 
 /**
@@ -38,7 +37,7 @@ static inline uint64_t first_8_bytes_as_uint64(const uint8_t *bytearray) {
     write_int32_to_buffer(SkToU32(bitmap.height()), &out);
 
     // add all the pixel data
-    SkAutoTDelete<SkImageEncoder> enc(CreateARGBImageEncoder());
+    SkAutoTDelete<SkImageEncoder> enc(SkNEW(SkImageEncoder_argb));
     if (!enc->encodeStream(&out, bitmap, SkImageEncoder::kDefaultQuality)) {
         return false;
     }