Remove dependencies on Android's forked decoder libraries

src/images/SkJpegUtility.cpp

 /*
  * Copyright 2010 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkJpegUtility.h"
 
-#if defined(SK_BUILD_FOR_ANDROID) && !defined(SK_JPEG_NO_INDEX_SUPPORTED)
-#define SK_JPEG_INDEX_SUPPORTED
-#endif
-
 /////////////////////////////////////////////////////////////////////
 static void sk_init_source(j_decompress_ptr cinfo) {
     skjpeg_source_mgr*  src = (skjpeg_source_mgr*)cinfo->src;
     src->next_input_byte = (const JOCTET*)src->fBuffer;
     src->bytes_in_buffer = 0;
 #ifdef SK_JPEG_INDEX_SUPPORTED
     src->current_offset = 0;
 #endif
     if (!src->fStream->rewind()) {
         SkDebugf("xxxxxxxxxxxxxx failure to rewind\n");
@@ skipping 136 matching lines @@
 void skjpeg_error_exit(j_common_ptr cinfo) {
     skjpeg_error_mgr* error = (skjpeg_error_mgr*)cinfo->err;
 
     (*error->output_message) (cinfo);
 
     /* Let the memory manager delete any temp files before we die */
     jpeg_destroy(cinfo);
 
     longjmp(error->fJmpBuf, -1);
 }