xfree86: remove redundant declaration of inputInfo

xf86Cursor.c:19:18: warning: redundant redeclaration of 'inputInfo'
[-Wredundant-decls]
In file included from xf86Cursor.c:18:0:
../../../include/inputstr.h:614:57: note: previous declaration of
'inputInfo' was here
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>

hw/xfree86/ramdac/xf86Cursor.c

@@ -16,7 +16,6 @@
  * Externing inputInfo is not the nice way to do it but it works.
  */
 #include "inputstr.h"
-extern InputInfo inputInfo;
 
 DevPrivateKeyRec xf86CursorScreenKeyRec;