Ensure that v2 onion address flag gets cleared on each call

src/freedombone-utils-onion

 
     if [ -f ${HIDDEN_SERVICE_PATH}${onion_service_name}/hostname ]; then
         echo $(cat ${HIDDEN_SERVICE_PATH}${onion_service_name}/hostname)
+        USE_V2_ONION_ADDRESS=
         return
     fi
 
     if [ ! -d /var/lib/tor ]; then
         echo $"No Tor installation found. ${onion_service_name} onion site cannot be configured."
+        USE_V2_ONION_ADDRESS=
         exit 877367
     fi
     if ! grep -q "hidden_service_${onion_service_name}" /etc/tor/torrc; then
             echo 'HiddenServiceVersion 3' >> /etc/tor/torrc
         else
             echo 'HiddenServiceVersion 2' >> /etc/tor/torrc
-            USE_V2_ONION_ADDRESS=
         fi
         echo "HiddenServicePort ${onion_service_port_from} 127.0.0.1:${onion_service_port_to}" >> /etc/tor/torrc
         if [ ${#onion_stealth_name} -gt 0 ]; then
         fi
     fi
 
+    USE_V2_ONION_ADDRESS=
+
     onion_update
 
     function_check wait_for_onion_service