Force linking with image decoders for images project.

tools/skimage_main.cpp

Index: tools/skimage_main.cpp
diff --git a/tools/skimage_main.cpp b/tools/skimage_main.cpp
index 188164ff06ac6d43f1ac337779510f07fef4e560..7906386cdce2fb7f25999863f0c215826a7349ac 100644
--- a/tools/skimage_main.cpp
+++ b/tools/skimage_main.cpp
@@ -292,22 +292,6 @@ int tool_main(int argc, char** argv) {
     return failed ? -1 : 0;
 }
 
-void forceLinking();
-
-void forceLinking() {
-    // This function leaks, but that is okay because it is not intended
-    // to be called. It is only here so that the linker will include the
-    // decoders.
-    SkDEBUGCODE(SkImageDecoder *creator = ) CreateJPEGImageDecoder();
-    SkASSERT(creator);
-    SkDEBUGCODE(creator = ) CreateWEBPImageDecoder();
-    SkASSERT(creator);
-#ifdef SK_BUILD_FOR_UNIX
-    SkDEBUGCODE(creator = ) CreateGIFImageDecoder();
-    SkASSERT(creator);
-#endif
-}
-
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char * const argv[]) {
     return tool_main(argc, (char**) argv);