Remove unneeded version.h includes from drivers/staging/xgifb/

It was pointed out by 'make versioncheck' that some includes of
linux/version.h are not needed in drivers/staging/xgifb/.
This patch removes them.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/xgifb/XGI_main_26.c

@@ -5,7 +5,6 @@
  */
 
 /* #include <linux/config.h> */
-#include <linux/version.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/kernel.h>

drivers/staging/xgifb/vb_ext.c

-#include <linux/version.h>
 #include <linux/io.h>
 #include <linux/types.h>
 #include "XGIfb.h"

drivers/staging/xgifb/vb_init.c

 #include "vgatypes.h"
 
-#include <linux/version.h>
 #include <linux/types.h>
 #include <linux/delay.h> /* udelay */
 #include "XGIfb.h"

drivers/staging/xgifb/vb_setmode.c

@@ -2,7 +2,6 @@
 #include <linux/io.h>
 #include <linux/delay.h>
 #include <linux/types.h>
-#include <linux/version.h>
 #include "XGIfb.h"