Staging: SLICOSS: remove duplicated #include's

Removed duplicated #include's in drivers/staging/slicoss/slicoss.c.
  linux/delay.h
  linux/etherdevice.h
  linux/init.h
  linux/netdevice.h
  linux/pci.h
  linux/skbuff.h
  linux/slab.h
  linux/string.h
Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/slicoss/slicoss.c

@@ -96,17 +96,9 @@
 #include <linux/moduleparam.h>
 
 #include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/pci.h>
 #include <linux/dma-mapping.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
 #include <linux/mii.h>
 #include <linux/if_vlan.h>
-#include <linux/skbuff.h>
-#include <linux/string.h>
 #include <asm/unaligned.h>
 
 #include <linux/ethtool.h>