lavc/packet: schedule AV_PKT_DATA_QUALITY_FACTOR for removal

It is unused internally and has been marked as deprecated a long time
ago.

libavcodec/packet.h

@@ -341,7 +341,9 @@ enum AVPacketSideDataType {
     AV_PKT_DATA_NB
 };
 
+#if FF_API_QUALITY_FACTOR
 #define AV_PKT_DATA_QUALITY_FACTOR AV_PKT_DATA_QUALITY_STATS //DEPRECATED
+#endif
 
 /**
  * This structure stores auxiliary information for decoding, presenting, or

libavcodec/version_major.h

@@ -47,5 +47,6 @@
 #define FF_API_AVCODEC_CLOSE       (LIBAVCODEC_VERSION_MAJOR < 62)
 #define FF_API_BUFFER_MIN_SIZE     (LIBAVCODEC_VERSION_MAJOR < 62)
 #define FF_API_VDPAU_ALLOC_GET_SET (LIBAVCODEC_VERSION_MAJOR < 62)
+#define FF_API_QUALITY_FACTOR      (LIBAVCODEC_VERSION_MAJOR < 62)
 
 #endif /* AVCODEC_VERSION_MAJOR_H */