fix(prometheus): remove unused prometheus.d dir

The container was not starting because the dir was not present

Author: gsanchietti

README.md

@@ -77,7 +77,6 @@ The module is composed by the following systemd units:
 - prometheus.service: runs the prometheus container
 - loki.service: runs the loki container
 - grafana.service: runs the grafana container
-  container creates a file inside the `prometheus.d/` directory
 - webssh.service: runs the webssh container
 
 ### API Server

imageroot/systemd/user/prometheus.service

@@ -19,7 +19,6 @@ ExecStart=/usr/bin/podman run \
     --pod-id-file %t/controller.pod-id \
     --replace -d --name prometheus \
     --volume=%S/state/prometheus.yml:/prometheus/prometheus.yml:z \
-    --volume=./prometheus.d/:/prometheus/prometheus.d/:z \
     --volume=prometheus-data:/prometheus:z \
     --network=host \
     ${PROMETHEUS_IMAGE} --web.listen-address=127.0.0.1:${PROMETHEUS_PORT} --web.external-url=${PROMETHEUS_PATH} --storage.tsdb.retention.time=${PROMETHEUS_RETENTION}