staging: rtl8188eu: remove unnecessary includes

In the header rtw_iol.h there is only one function declared.
Remove the include of rtw_iol.h from files that do not use
this function.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/hal/mac_cfg.c

@@ -7,7 +7,6 @@
 
 #include "odm_precomp.h"
 #include "phy.h"
-#include <rtw_iol.h>
 
 /* MAC_REG.TXT */
 

drivers/staging/rtl8188eu/hal/phy.c

@@ -8,7 +8,6 @@
 
 #include <osdep_service.h>
 #include <drv_types.h>
-#include <rtw_iol.h>
 #include <rtl8188e_hal.h>
 #include <rf.h>
 #include <phy.h>

drivers/staging/rtl8188eu/hal/usb_halinit.c

@@ -11,7 +11,6 @@
 #include <rtw_efuse.h>
 #include <fw.h>
 #include <rtl8188e_hal.h>
-#include <rtw_iol.h>
 #include <phy.h>
 
 #define		HAL_BB_ENABLE		1

drivers/staging/rtl8188eu/os_dep/ioctl_linux.c

@@ -19,7 +19,6 @@
 #include <rtw_ioctl_set.h>
 #include <rtl8188e_hal.h>
 
-#include <rtw_iol.h>
 #include <linux/vmalloc.h>
 #include <linux/etherdevice.h>