lavc: Drop deprecated chroma subsample function

Deprecated in 11/2012.

libavcodec/avcodec.h

@@ -4899,12 +4899,6 @@ int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width,
  * @{
  */
 
-/**
- * @deprecated Use av_pix_fmt_get_chroma_sub_sample
- */
-
-void attribute_deprecated avcodec_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift);
-
 /**
  * Return a value representing the fourCC code associated to the
  * pixel format pix_fmt, or 0 if no associated fourCC code can be

libavcodec/imgconvert.c

@@ -33,15 +33,6 @@
 #include "libavutil/internal.h"
 #include "libavutil/imgutils.h"
 
-#if FF_API_GETCHROMA
-void avcodec_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
-{
-    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
-    *h_shift = desc->log2_chroma_w;
-    *v_shift = desc->log2_chroma_h;
-}
-#endif
-
 static int is_gray(const AVPixFmtDescriptor *desc)
 {
     return desc->nb_components - (desc->flags & AV_PIX_FMT_FLAG_ALPHA) == 1;

libavcodec/version.h

@@ -47,9 +47,6 @@
  * the public API and may change, break or disappear at any time.
  */
 
-#ifndef FF_API_GETCHROMA
-#define FF_API_GETCHROMA         (LIBAVCODEC_VERSION_MAJOR < 58)
-#endif
 #ifndef FF_API_MISSING_SAMPLE
 #define FF_API_MISSING_SAMPLE    (LIBAVCODEC_VERSION_MAJOR < 58)
 #endif