staging: rtl8188eu: Remove function rtw_modular64()

Remove function rtw_modular64 as all it does is call do_div.
Replace call to rtw_modular64 with call to do_div.
Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lore.kernel.org/r/20190712071746.2474-5-nishkadg.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/hal/usb_halinit.c

@@ -1298,7 +1298,7 @@ void rtw_hal_set_hwreg(struct adapter *Adapter, u8 variable, u8 *val)
 			struct mlme_ext_priv	*pmlmeext = &Adapter->mlmeextpriv;
 			struct mlme_ext_info	*pmlmeinfo = &pmlmeext->mlmext_info;
 
-			tsf = pmlmeext->TSFValue - rtw_modular64(pmlmeext->TSFValue, (pmlmeinfo->bcn_interval*1024)) - 1024; /* us */
+			tsf = pmlmeext->TSFValue - do_div(pmlmeext->TSFValue, (pmlmeinfo->bcn_interval*1024)) - 1024; /* us */
 
 			if (((pmlmeinfo->state&0x03) == WIFI_FW_ADHOC_STATE) || ((pmlmeinfo->state&0x03) == WIFI_FW_AP_STATE))
 				StopTxBeacon(Adapter);

drivers/staging/rtl8188eu/include/osdep_service.h

@@ -80,8 +80,6 @@ void rtw_free_netdev(struct net_device *netdev);
 #define FUNC_ADPT_FMT "%s(%s)"
 #define FUNC_ADPT_ARG(adapter) __func__, adapter->pnetdev->name
 
-u64 rtw_modular64(u64 x, u64 y);
-
 /* Macros for handling unaligned memory accesses */
 
 #define RTW_GET_BE24(a) ((((u32)(a)[0]) << 16) | (((u32) (a)[1]) << 8) | \

drivers/staging/rtl8188eu/os_dep/osdep_service.c

@@ -59,11 +59,6 @@ void rtw_free_netdev(struct net_device *netdev)
 	return;
 }
 
-u64 rtw_modular64(u64 x, u64 y)
-{
-	return do_div(x, y);
-}
-
 void rtw_buf_free(u8 **buf, u32 *buf_len)
 {
 	*buf_len = 0;