hostapd: silence rm

When bringing up wifi the first time after boot, these warnings appear:

netifd: radio0 (1370): rm: can't remove '/var/run/hostapd-wlan0.psk': No such file or directory
netifd: radio0 (1370): rm: can't remove '/var/run/hostapd-wlan0.vlan': No such file or directory

Silence them by adding the "-f" option to rm.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Acked-by: John Crispin <john@phrozen.org>

package/network/services/hostapd/files/hostapd.sh

@@ -273,7 +273,7 @@ hostapd_set_vlan_file() {
 hostapd_set_vlan() {
 	local ifname="$1"
 
-	rm /var/run/hostapd-${ifname}.vlan
+	rm -f /var/run/hostapd-${ifname}.vlan
 	for_each_vlan hostapd_set_vlan_file ${ifname}
 }
 
@@ -291,7 +291,7 @@ hostapd_set_psk_file() {
 hostapd_set_psk() {
 	local ifname="$1"
 
-	rm /var/run/hostapd-${ifname}.psk
+	rm -f /var/run/hostapd-${ifname}.psk
 	for_each_station hostapd_set_psk_file ${ifname}
 }