staging: wilc1000: removes linux_wlan_common.h file

This patch removes linux_wlan_common.h file and also removes the following
preprocessor at files that include it:
 - #include 'linux_wlan_common.h'
Signed-off-by: Chris Park <chris.park@atmel.com>
Signed-off-by: Leo Kim <leo.kim@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/linux_mon.c

@@ -7,7 +7,6 @@
  *  @version	1.0
  */
 #include "wilc_wfi_cfgoperations.h"
-#include "linux_wlan_common.h"
 #include "wilc_wlan_if.h"
 #include "wilc_wlan.h"
 

drivers/staging/wilc1000/linux_wlan.c

 #include "wilc_wfi_cfgoperations.h"
-#include "linux_wlan_common.h"
 #include "wilc_wlan_if.h"
 #include "wilc_wlan.h"
 

drivers/staging/wilc1000/linux_wlan_common.h

-#ifndef LINUX_WLAN_COMMON_H
-#define LINUX_WLAN_COMMON_H
-#endif

drivers/staging/wilc1000/wilc_msgqueue.c

 
 #include "wilc_msgqueue.h"
 #include <linux/spinlock.h>
-#include "linux_wlan_common.h"
 #include <linux/errno.h>
 #include <linux/slab.h>
 

drivers/staging/wilc1000/wilc_spi.c

@@ -18,7 +18,6 @@
 #include <linux/spi/spi.h>
 #include <linux/of_gpio.h>
 
-#include "linux_wlan_common.h"
 #include <linux/string.h>
 #include "wilc_wlan_if.h"
 #include "wilc_wlan.h"

drivers/staging/wilc1000/wilc_wlan_if.h

@@ -11,7 +11,6 @@
 #define WILC_WLAN_IF_H
 
 #include <linux/semaphore.h>
-#include "linux_wlan_common.h"
 #include <linux/netdevice.h>
 
 /********************************************