Remove LITE config option

Why?

     1. The reason for its existence is to "Disable some stuff that are
        duplicated in kde", and I don't think I will ever need that.
        Furthermore, even the description in the configure script reads
        "disable some stuff (dont use it)".

     2. It makes the code uglier at some places, e.g.,

         #ifdef LITE
                {
         #if 0
                }
         #endif
         #else

                if (!wRootMenuPerformShortcut(event)) {
         #endif

        which by the way is the ugliness which motivated this patch.

     3. Does not even compile anymore. It fails with

          CC dockedapp.o
          CC event.o
       event.c: In function 'executeButtonAction:
       event.c:711: error: WScreen has no member named root_menu
       event.c:712: error: WScreen has no member named root_menu
       event.c:713: error: WScreen has no member named root_menu
       event.c:715: error: WScreen has no member named root_menu
       event.c:720: error: WScreen has no member named switch_menu
       event.c:721: error: WScreen has no member named switch_menu
       event.c:722: error: WScreen has no member named switch_menu
       event.c:724: error: WScreen has no member named switch_menu
       make[2]: *** [event.o] Error 1
       make[1]: *** [all] Error 2
       make: *** [all-recursive] Error 1

       But instead of fixing this (it would be trivial), let's get
       rid of the whole ugliness altogether.

src/switchmenu.c

@@ -22,8 +22,6 @@
 
 #include "wconfig.h"
 
-#ifndef LITE
-
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -424,5 +422,3 @@ static void wsobserver(void *self, WMNotification * notif)
 
 	}
 }
-
-#endif				/* !LITE */