fourcc: remove duplicate FourCC alias

Multiple identical FourCC in the same ES category have never worked and
never will work. So far the linear search loop would always pick the
first match.

src/misc/fourcc_list.h

@@ -31,7 +31,6 @@ static const staticentry_t p_list_video[] = {
 
     B(VLC_CODEC_MPGV, "MPEG-1/2 Video"),
     B(VLC_CODEC_MP2V, "MPEG-2 Video"),
-        A("mpgv"),
         A("mpeg"),
         A("mp2v"),
         A("MPEG"),
@@ -280,7 +279,6 @@ static const staticentry_t p_list_video[] = {
         A("VX1K"),
         A("s263"),
         A("S263"),
-        A("U263"),
         A("u263"),
         A("lsvm"),
         E("D263", "DEC H263"),
@@ -327,11 +325,9 @@ static const staticentry_t p_list_video[] = {
         A("mJPG"),
         A("mjpa"),
         A("jpeg"),
-        A("JPEG"),
         A("JFIF"),
         A("JPGL"),
         A("LJPG"),
-        A("AVDJ"),
         A("MMJP"),
         A("FLJP"),
         A("FMJP"),
@@ -762,7 +758,6 @@ static const staticentry_t p_list_video[] = {
     B(VLC_CODEC_YUV422A, "Planar YUV 4:2:2 Y:U:V:A"),
         A("I42A"),
     B(VLC_CODEC_YUVA_444_10L, "Planar YUV 4:4:4 Y:U:V:A 10bits"),
-        A("YUVA"),
 
     B(VLC_CODEC_RGBP, "Palettized RGB with palette element R:G:B"),
         A("RGBP"),
@@ -1004,7 +999,6 @@ static const staticentry_t p_list_video[] = {
         A("MSA1"),
 
     B(VLC_CODEC_TSC2, "TechSmith Screen Codec 2"),
-        A("MSA1"),
         A("tsc2"),
 
     B(VLC_CODEC_MTS2, "Microsoft Expression Encoder Screen"),