net: Remove unnecessary inclusions of asm/semaphore.h

None of these files use any of the functionality promised by
asm/semaphore.h. It's possible that they rely on it dragging in some
unrelated header file, but I can't build all these files, so we'll have
fix any build failures as they come up.

Signed-off-by: Matthew Wilcox <[e-mail]>

drivers/net/cxgb3/adapter.h

···
 #include <linux/mutex.h>
 #include <linux/bitops.h>
 #include "t3cdev.h"
-#include <asm/semaphore.h>
 #include <asm/io.h>
 
 struct vlan_group;

drivers/net/cxgb3/t3cdev.h

···
 
 #include <linux/list.h>
 #include <asm/atomic.h>
-#include <asm/semaphore.h>
 #include <linux/netdevice.h>
 #include <linux/proc_fs.h>
 #include <linux/skbuff.h>

drivers/net/ibmveth.c

···
 #include <linux/in.h>
 #include <linux/ip.h>
 #include <net/net_namespace.h>
-#include <asm/semaphore.h>
 #include <asm/hvcall.h>
 #include <asm/atomic.h>
 #include <asm/vio.h>

drivers/net/netxen/netxen_nic_hdr.h

···
 #include <linux/kernel.h>
 #include <linux/version.h>
 
-#include <asm/semaphore.h>
 #include <linux/spinlock.h>
 #include <asm/irq.h>
 #include <linux/init.h>

drivers/net/usb/kaweth.c

···
 #include <linux/dma-mapping.h>
 #include <linux/wait.h>
 #include <asm/uaccess.h>
-#include <asm/semaphore.h>
 #include <asm/byteorder.h>
 
 #undef DEBUG

net/core/flow.c

···
 #include <linux/mutex.h>
 #include <net/flow.h>
 #include <asm/atomic.h>
-#include <asm/semaphore.h>
 #include <linux/security.h>
 
 struct flow_cache_entry {

net/dccp/proto.c

···
 #include <net/xfrm.h>
 
 #include <asm/ioctls.h>
-#include <asm/semaphore.h>
 #include <linux/spinlock.h>
 #include <linux/timer.h>
 #include <linux/delay.h>

net/ipv4/ipcomp.c

···
  *   - Adaptive compression.
  */
 #include <linux/module.h>
-#include <asm/semaphore.h>
 #include <linux/crypto.h>
 #include <linux/err.h>
 #include <linux/pfkeyv2.h>

net/ipv6/ipcomp6.c

···
 #include <net/ip.h>
 #include <net/xfrm.h>
 #include <net/ipcomp.h>
-#include <asm/semaphore.h>
 #include <linux/crypto.h>
 #include <linux/err.h>
 #include <linux/pfkeyv2.h>