irda: Removed all unused timeval variables

In the file au1k_ir.c & via-ircc.h, there were two unused definitions of the
timeval type members, this commit therefore removes this unneeded code.

In other three files, the same problem is the rx_time member is only ever
written, never read, so removed it entirely.

Signed-off-by: Chunyan Zhang <[e-mail]>
Reviewed-by: Arnd Bergmann <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/irda/au1k_ir.c

···
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
-#include <linux/time.h>
 #include <linux/types.h>
 #include <linux/ioport.h>
 
···
 	iobuff_t rx_buff;
 
 	struct net_device *netdev;
-	struct timeval stamp;
-	struct timeval now;
 	struct qos_info qos;
 	struct irlap_cb *irlap;
 

drivers/net/irda/kingsun-sir.c

···
 					   (usually 8) */
 
 	iobuff_t  	  rx_buff;	/* receive unwrap state machine */
-	struct timeval	  rx_time;
 	spinlock_t lock;
 	int receiving;
 
···
 						  &kingsun->netdev->stats,
 						  &kingsun->rx_buff, bytes[i]);
 			}
-			do_gettimeofday(&kingsun->rx_time);
 			kingsun->receiving =
 				(kingsun->rx_buff.state != OUTSIDE_FRAME)
 				? 1 : 0;
···
 
 	skb_reserve(kingsun->rx_buff.skb, 1);
 	kingsun->rx_buff.head = kingsun->rx_buff.skb->data;
-	do_gettimeofday(&kingsun->rx_time);
 
 	kingsun->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
 	if (!kingsun->rx_urb)

drivers/net/irda/ks959-sir.c

···
 	__u8 *rx_buf;
 	__u8 rx_variable_xormask;
 	iobuff_t rx_unwrap_buff;
-	struct timeval rx_time;
 
 	struct usb_ctrlrequest *speed_setuprequest;
 	struct urb *speed_urb;
···
 						  bytes[i]);
 			}
 		}
-		do_gettimeofday(&kingsun->rx_time);
 		kingsun->receiving =
 		    (kingsun->rx_unwrap_buff.state != OUTSIDE_FRAME) ? 1 : 0;
 	}
···
 
 	skb_reserve(kingsun->rx_unwrap_buff.skb, 1);
 	kingsun->rx_unwrap_buff.head = kingsun->rx_unwrap_buff.skb->data;
-	do_gettimeofday(&kingsun->rx_time);
 
 	kingsun->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
 	if (!kingsun->rx_urb)

drivers/net/irda/mcs7780.c

···
 
 	skb_reserve(mcs->rx_buff.skb, 1);
 	mcs->rx_buff.head = mcs->rx_buff.skb->data;
-	do_gettimeofday(&mcs->rx_time);
 
 	/*
 	 * Now that everything should be initialized properly,
···
 			mcs_unwrap_fir(mcs, urb->transfer_buffer,
 				urb->actual_length);
 		}
-		do_gettimeofday(&mcs->rx_time);
 	}
 
 	ret = usb_submit_urb(urb, GFP_ATOMIC);

drivers/net/irda/mcs7780.h

···
 	__u8 *fifo_status;
 
 	iobuff_t rx_buff;	/* receive unwrap state machine */
-	struct timeval rx_time;
 	spinlock_t lock;
 	int receiving;
 

drivers/net/irda/via-ircc.h

···
  ********************************************************************/
 #ifndef via_IRCC_H
 #define via_IRCC_H
-#include <linux/time.h>
 #include <linux/spinlock.h>
 #include <linux/pm.h>
 #include <linux/types.h>
···
 	dma_addr_t rx_buff_dma;
 
 	__u8 ier;		/* Interrupt enable register */
-
-	struct timeval stamp;
-	struct timeval now;
 
 	spinlock_t lock;	/* For serializing operations */