xorg: remove references to non-existing configuration options

The option BR2_PACKAGE_TINY, BR2_PACKAGE_XORG and BR2_PACKAGE_XGGI
don't exist, so do not use them to find the value of the $(XSERVER)
variable.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/Makefile.in

@@ -384,18 +384,9 @@ endif
 # X Windowing system
 
 XSERVER:=
-ifeq ($(BR2_PACKAGE_TINYX),y)
-XSERVER+=tinyx
-endif
-ifeq ($(BR2_PACKAGE_XORG),y)
-XSERVER+=xorg
-endif
 ifeq ($(BR2_PACKAGE_XORG7),y)
 XSERVER+=xserver_xorg-server
 endif
-ifeq ($(BR2_PACKAGE_XGGI),y)
-XSERVER+=xggi
-endif
 
 X11_PREFIX:=$(strip $(subst ",, $(BR2_X11_PREFIX)))
 #"))