sfc: remove duplicated include from ef10.c

Remove duplicated include.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/sfc/ef10.c

@@ -16,7 +16,6 @@
 #include "workarounds.h"
 #include "selftest.h"
 #include "ef10_sriov.h"
-#include "rx_common.h"
 #include <linux/in.h>
 #include <linux/jhash.h>
 #include <linux/wait.h>