Update nightly Docker image

[skip ci]

Signed-off-by: Neil Twigg <neil@nats.io>

docker/Dockerfile.nightly

@@ -39,7 +39,6 @@ ARG TARGETARCH
 
 RUN apk add --no-cache tzdata
 
-COPY ./nats-server/docker/nats-server.conf                     /nats/conf/nats-server.conf
 COPY --from=builder /etc/ssl/certs/ca-certificates.crt         /etc/ssl/certs/
 COPY --from=builder /src/out/$TARGETOS/$TARGETARCH/nats-server /bin/nats-server
 COPY --from=builder /src/out/$TARGETOS/$TARGETARCH/nats        /bin/nats
@@ -48,4 +47,3 @@ COPY --from=builder /src/out/$TARGETOS/$TARGETARCH/nsc         /bin/nsc
 EXPOSE 4222 8222 6222 5222
 
 ENTRYPOINT ["/bin/nats-server"]
-CMD ["-c", "/nats/conf/nats-server.conf"]

docker/nats-server.conf

@@ -1,26 +0,0 @@
-
-# Client port of 4222 on all interfaces
-port: 4222
-
-# HTTP monitoring port
-monitor_port: 8222
-
-# This is for clustering multiple servers together.
-cluster {
-
-  # Route connections to be received on any interface on port 6222
-  port: 6222
-
-  # Routes are protected, so need to use them with --routes flag
-  # e.g. --routes=nats-route://ruser:T0pS3cr3t@otherdockerhost:6222
-  authorization {
-    user: ruser
-    password: T0pS3cr3t
-    timeout: 2
-  }
-
-  # Routes are actively solicited and connected to from this server.
-  # This Docker image has none by default, but you can pass a
-  # flag to the nats-server docker image to create one to an existing server.
-  routes = []
-}