Remove --disable-{v4l,v4l2} options from configure

--disable-demuxer={v4l,v4l2} should be used instead

Originally committed as revision 10413 to svn://svn.ffmpeg.org/ffmpeg/trunk

configure

@@ -122,8 +122,6 @@ show_help(){
   echo "  --disable-altivec        disable AltiVec usage"
   echo "  --disable-audio-oss      disable OSS audio support [default=no]"
   echo "  --disable-audio-beos     disable BeOS audio support [default=no]"
-  echo "  --disable-v4l            disable video4linux grabbing [default=no]"
-  echo "  --disable-v4l2           disable video4linux2 grabbing [default=no]"
   echo "  --disable-bktr           disable bktr video grabbing [default=no]"
   echo "  --disable-network        disable network support [default=no]"
   echo "  --disable-ipv6           disable ipv6 support [default=no]"
@@ -624,8 +622,6 @@ CONFIG_LIST="
     small
     swscaler
     vhook
-    v4l
-    v4l2
     x11grab
     zlib
 "
@@ -791,8 +787,8 @@ redir_demuxer_deps="network"
 rtp_muxer_deps="network mpegts_demuxer"
 rtsp_demuxer_deps="rtp_protocol rtp_muxer"
 sdp_demuxer_deps="rtsp_demuxer"
-v4l2_demuxer_deps="v4l2"
-v4l_demuxer_deps="v4l"
+v4l2_demuxer_deps="linux_videodev2_h"
+v4l_demuxer_deps="linux_videodev_h"
 x11_grab_device_demuxer_deps="x11grab"
 
 # protocols
@@ -852,8 +848,6 @@ targetos=$(tolower $(uname -s))
 # non-library system interfaces
 audio_oss="yes"
 bktr="yes"
-v4l2="yes"
-v4l="yes"
 
 # libraries
 zlib="yes"
@@ -1698,8 +1692,8 @@ int main( void ) {
 }
 EOF
 
-enabled v4l  && check_header linux/videodev.h  || disable v4l
-enabled v4l2 && check_header linux/videodev2.h || disable v4l2
+check_header linux/videodev.h
+check_header linux/videodev2.h
 
 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
 if enabled bktr; then