vdpau: Remove a spurious CONFIG_H263_VDPAU_HWACCEL

Fixes libavcodec/vdpau.c:282:5: warning:
    "CONFIG_H263_VDPAU_HWACCEL" is not defined [-Wundef]

Removed in d35d0c72.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

libavcodec/vdpau.c

@@ -279,7 +279,7 @@ int ff_vdpau_common_end_frame(AVCodecContext *avctx, AVFrame *frame,
     return vdpau_error(status);
 }
 
-#if CONFIG_H263_VDPAU_HWACCEL  || CONFIG_MPEG1_VDPAU_HWACCEL || \
+#if CONFIG_MPEG1_VDPAU_HWACCEL || \
     CONFIG_MPEG2_VDPAU_HWACCEL || CONFIG_MPEG4_VDPAU_HWACCEL || \
     CONFIG_VC1_VDPAU_HWACCEL   || CONFIG_WMV3_VDPAU_HWACCEL
 int ff_vdpau_mpeg_end_frame(AVCodecContext *avctx)