Staging: comedi: remove dupilcated #include

Remove dupilcated #include in drivers/staging/comedi/drivers/8253.h.
Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/comedi/drivers/8253.h

@@ -24,11 +24,7 @@
 #ifndef _8253_H
 #define _8253_H
 
-#ifndef CMDTEST
-#include "../comedi.h"
-#else
 #include "../comedi.h"
-#endif
 
 #define i8253_cascade_ns_to_timer i8253_cascade_ns_to_timer_2div