lavc: Drop deprecated public symbols

qscale types and maximum number of bframes deprecated in 10/2013.
Negative linesizes deprecated in 11/2013.
xvidmmx deprecated in 08/2014.

libavcodec/avcodec.h

@@ -730,13 +730,6 @@ typedef struct RcOverride{
     float quality_factor;
 } RcOverride;
 
-#if FF_API_MAX_BFRAMES
-/**
- * @deprecated there is no libavcodec-wide limit on the number of B-frames
- */
-#define FF_MAX_B_FRAMES 16
-#endif
-
 /* encoding support
    These flags can be passed in AVCodecContext.flags before initialization.
    Note: Not everything is supported yet.
@@ -1057,12 +1050,6 @@ typedef struct RcOverride{
  * Codec should fill in channel configuration and samplerate instead of container
  */
 #define CODEC_CAP_CHANNEL_CONF     0x0400
-#if FF_API_NEG_LINESIZES
-/**
- * @deprecated no codecs use this capability
- */
-#define CODEC_CAP_NEG_LINESIZES    0x0800
-#endif
 /**
  * Codec supports frame-level multithreading.
  */
@@ -1178,13 +1165,6 @@ typedef struct AVCPBProperties {
     uint64_t vbv_delay;
 } AVCPBProperties;
 
-#if FF_API_QSCALE_TYPE
-#define FF_QSCALE_TYPE_MPEG1 0
-#define FF_QSCALE_TYPE_MPEG2 1
-#define FF_QSCALE_TYPE_H264  2
-#define FF_QSCALE_TYPE_VP56  3
-#endif
-
 /**
  * The decoder will keep a reference to the frame and may reuse it later.
  */
@@ -2722,9 +2702,6 @@ typedef struct AVCodecContext {
 #define FF_IDCT_IPP           13
 #endif /* FF_API_UNUSED_MEMBERS */
 #define FF_IDCT_XVID          14
-#if FF_API_IDCT_XVIDMMX
-#define FF_IDCT_XVIDMMX       14
-#endif /* FF_API_IDCT_XVIDMMX */
 #define FF_IDCT_SIMPLEARMV5TE 16
 #define FF_IDCT_SIMPLEARMV6   17
 #define FF_IDCT_FAAN          20