Remove image decoder and encoder autoregistration

src/images/SkImageDecoder_pkm.h

Index: src/images/SkImageDecoder_pkm.h
diff --git a/src/images/SkImageDecoder_pkm.h b/src/images/SkImageDecoder_pkm.h
new file mode 100644
index 0000000000000000000000000000000000000000..7564b90999aa3b765c95d346f40dcf6709c293b8
--- /dev/null
+++ b/src/images/SkImageDecoder_pkm.h
@@ -0,0 +1,17 @@
+
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkImageDecoder_pkm_DEFINED
+#define SkImageDecoder_pkm_DEFINED
+
+#include "SkImageDecoder.h"
+
+SkImageDecoder* SkCreatePKMImageDecoder(SkStreamRewindable* stream);
+SkImageDecoder::Format SkDetectFormatPKMImageDecoder(SkStreamRewindable* stream);
+
+#endif