[PATCH] libertas: remove one superfluous include

This makes scripts/checkincludes.pl happy.
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/libertas/if_usb.c

@@ -15,7 +15,6 @@
 #include "defs.h"
 #include "dev.h"
 #include "if_usb.h"
-#include "decl.h"
 
 #define MESSAGE_HEADER_LEN	4