configure: dont blindly enable iec61883

This should fix a configure failure Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago · 0348102835
--- a/configure
+++ b/configure
@@ -2821,7 +2821,6 @@ case $target_os in
    linux)
        add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
        enable dv1394
        enable iec61883
        ;;
    irix*)
        target_os=irix