refactor(jigasi): no need to check the hardcoded password

jigasi/rootfs/etc/cont-init.d/10-config

@@ -7,12 +7,6 @@ if [[ -z $JIGASI_XMPP_PASSWORD ]]; then
     exit 1
 fi
 
-OLD_JIGASI_XMPP_PASSWORD=passw0rd
-if [[ "$JIGASI_XMPP_PASSWORD" == "$OLD_JIGASI_XMPP_PASSWORD" ]]; then
-    echo 'FATAL ERROR: Jigasi auth password must be changed, check the README'
-    exit 1
-fi
-
 [ -z "$JIGASI_MODE" ] && JIGASI_MODE="sip"
 JIGASI_MODE="$(echo $JIGASI_MODE | tr '[:upper:]' '[:lower:]')"