remove unnecessary extern.

The function is defined static in os_dep/os_intfs.c and used only once
in the same file

remove also a blank line

Signed-off-by: Fabio Aiuto <fabioaiut...@gmail.com>
---
 drivers/staging/rtl8723bs/os_dep/os_intfs.c  | 1 -
 drivers/staging/rtl8723bs/os_dep/sdio_intf.c | 2 --
 2 files changed, 3 deletions(-)

diff --git a/drivers/staging/rtl8723bs/os_dep/os_intfs.c 
b/drivers/staging/rtl8723bs/os_dep/os_intfs.c
index 3713c62a477c..321f7c45ed95 100644
--- a/drivers/staging/rtl8723bs/os_dep/os_intfs.c
+++ b/drivers/staging/rtl8723bs/os_dep/os_intfs.c
@@ -1027,7 +1027,6 @@ void rtw_ips_dev_unload(struct adapter *padapter)
                rtw_hal_deinit(padapter);
 }
 
-
 static int pm_netdev_open(struct net_device *pnetdev, u8 bnormal)
 {
        int status = -1;
diff --git a/drivers/staging/rtl8723bs/os_dep/sdio_intf.c 
b/drivers/staging/rtl8723bs/os_dep/sdio_intf.c
index 185919b6963f..156ad91d33ee 100644
--- a/drivers/staging/rtl8723bs/os_dep/sdio_intf.c
+++ b/drivers/staging/rtl8723bs/os_dep/sdio_intf.c
@@ -482,8 +482,6 @@ static void rtw_dev_remove(struct sdio_func *func)
        RT_TRACE(_module_hci_intfs_c_, _drv_notice_, ("-rtw_dev_remove\n"));
 }
 
-extern int pm_netdev_open(struct net_device *pnetdev, u8 bnormal);
-
 static int rtw_sdio_suspend(struct device *dev)
 {
        struct sdio_func *func = dev_to_sdio_func(dev);
-- 
2.20.1

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