Remove image decoder and encoder autoregistration

src/images/SkForceLinking.cpp

-/*
- * Copyright 2013 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "SkForceLinking.h"
-#include "SkImageDecoder.h"
-
-// This method is required to fool the linker into not discarding the pre-main
-// initialization and registration of the decoder classes. Passing true will
-// cause memory leaks.
-int SkForceLinking(bool doNotPassTrue) {
-    if (doNotPassTrue) {
-        SkASSERT(false);
-        CreateJPEGImageDecoder();
-        CreateWEBPImageDecoder();
-        CreateBMPImageDecoder();
-        CreateICOImageDecoder();
-        CreateWBMPImageDecoder();
-        // Only link hardware texture codecs on platforms that build them. See images.gyp
-#ifndef SK_BUILD_FOR_ANDROID_FRAMEWORK
-        CreatePKMImageDecoder();
-        CreateKTXImageDecoder();
-        CreateASTCImageDecoder();
-#endif
-        // Only link GIF and PNG on platforms that build them. See images.gyp
-#if !defined(SK_BUILD_FOR_MAC) && !defined(SK_BUILD_FOR_WIN) && !defined(SK_BUILD_FOR_NACL) \
-        && !defined(SK_BUILD_FOR_IOS)
-        CreateGIFImageDecoder();
-#endif
-#if !defined(SK_BUILD_FOR_MAC) && !defined(SK_BUILD_FOR_WIN) && !defined(SK_BUILD_FOR_IOS)
-        CreatePNGImageDecoder();
-#endif
-#if defined(SK_BUILD_FOR_IOS)
-        CreatePNGImageEncoder_IOS();
-#endif
-        return -1;
-    }
-    return 0;
-}