remove references to removed asademux code

62487ef428d02953eaae1c879655d714f38c8562 removed asademux code but not
all references to it vanished

Signed-off-by: Daniel Mierswa <impulze@impulze.org>
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Configure.sh

@@ -40,7 +40,6 @@ args="--enable-vcdx $args"
 args="--enable-twolame $args"
 args="--enable-realrtsp $args"
 args="--enable-libass $args"
-args="--enable-asademux $args"
 
 # disabled stuff
 args="--disable-ncurses $args"