remove dst/rendertarget support for kARGB_4444_Config

tests/ARGBImageEncoderTest.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 /** Tests for ARGBImageEncoder. */
 
 #include "Test.h"
 #include "SkBitmap.h"
 #include "SkCanvas.h"
 #include "SkImageEncoder.h"
 #include "SkStream.h"
 
 namespace skiatest {
 
 class BitmapTransformerTestClass : public Test {
 public:
     static Test* Factory(void*) { return SkNEW(BitmapTransformerTestClass); }
 protected:
     virtual void onGetName(SkString* name) SK_OVERRIDE { name->set("ARGBImageEncoder"); }
     virtual void onRun(Reporter* reporter) SK_OVERRIDE;
 };
 
 static SkBitmap::Config configs[] = {
         SkBitmap::kRGB_565_Config,
-        SkBitmap::kARGB_4444_Config,
         SkBitmap::kARGB_8888_Config,
 };
 
 void BitmapTransformerTestClass::onRun(Reporter* reporter) {
     // Bytes we expect to get:
     const int kWidth = 3;
     const int kHeight = 5;
     const unsigned char comparisonBuffer[] = {
         // kHeight rows, each with kWidth pixels, premultiplied ARGB for each pixel
         0xff,0xff,0x00,0x00, 0xff,0xff,0x00,0x00, 0xff,0xff,0x00,0x00, // red
@@ skipping 30 matching lines @@
 
         // Confirm we got the expected results.
         REPORTER_ASSERT(reporter, bufferSize == sizeof(comparisonBuffer));
         REPORTER_ASSERT(reporter, memcmp(pixelBuffer, comparisonBuffer, bufferSize) == 0);
     }
 }
 
 static TestRegistry gReg(BitmapTransformerTestClass::Factory);
 
 }