Staging: rtl8723bs: remove some dead code

"psecnetwork" is the address of &psecuritypriv->sec_bss.  Since
->sec_bss isn't the first member of the struct that means that
"psecnetwork" can't be NULL.

We can just remove this dead code.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723bs/core/rtw_cmd.c

@@ -835,14 +835,6 @@ u8 rtw_joinbss_cmd(struct adapter  *padapter, struct wlan_network *pnetwork)
 	}
 
 	psecnetwork = (struct wlan_bssid_ex *)&psecuritypriv->sec_bss;
-	if (psecnetwork == NULL) {
-		kfree(pcmd);
-		res = _FAIL;
-
-		RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_, ("rtw_joinbss_cmd :psecnetwork == NULL!!!\n"));
-
-		goto exit;
-	}
 
 	memset(psecnetwork, 0, t_len);