Rebuild ffmpeg 2.1.5 for ARMv7, x86, and MIPS. Reduced the size of ffmpeg libraries

jni/nv_avc_dec/ffmpeg/x86/include/libavutil/mem.h

@@ -335,27 +335,6 @@ void av_max_alloc(size_t max);
  */
 void av_memcpy_backptr(uint8_t *dst, int back, int cnt);
 
-/**
- * Reallocate the given block if it is not large enough, otherwise do nothing.
- *
- * @see av_realloc
- */
-void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size);
-
-/**
- * Allocate a buffer, reusing the given one if large enough.
- *
- * Contrary to av_fast_realloc the current buffer contents might not be
- * preserved and on error the old buffer is freed, thus no special
- * handling to avoid memleaks is necessary.
- *
- * @param ptr pointer to pointer to already allocated buffer, overwritten with pointer to new buffer
- * @param size size of the buffer *ptr points to
- * @param min_size minimum size of *ptr buffer after returning, *ptr will be NULL and
- *                 *size 0 if an error occurred.
- */
-void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size);
-
 /**
  * @}
  */