system/colord-gtk: Enable vala.

This is now a hard dep (from libgusb via colord).

Signed-off-by: David Spencer <idlemoor@slackbuilds.org>

system/colord-gtk/README

@@ -2,8 +2,5 @@ colord-gtk is the GTK+ support library for colord.
 
 You can use the following options:
 
-VALA=yes   enable vala API support, requires vala
-           (default: disabled, VALA=no)
-
 GTK2=no    disable extra GTK+2 support
            (default: enabled, GTK2=yes)

system/colord-gtk/colord-gtk.SlackBuild

@@ -74,11 +74,6 @@ if [ "$GTK2" = 'no' ]; then
   GTK2OPT=''
 fi
 
-VALAOPT=''
-if [ "$VALA" = 'yes' ]; then
-  VALAOPT='--enable-vala'
-fi
-
 CFLAGS="$SLKCFLAGS" \
 CXXFLAGS="$SLKCFLAGS" \
 ./configure \
@@ -89,8 +84,8 @@ CXXFLAGS="$SLKCFLAGS" \
   --mandir=/usr/man \
   --docdir=/usr/doc/$PRGNAM-$VERSION \
   --disable-static \
+  --enable-vala \
   $GTK2OPT \
-  $VALAOPT \
   --build=$ARCH-slackware-linux
 
 make