Remove Dendrite file logging

We refrain from logging to files for all components,
because we rely on systemd-journald anyway.

roles/matrix-dendrite/defaults/main.yml

@@ -53,10 +53,6 @@ matrix_dendrite_max_file_size_bytes: 10485760
 # The tmpfs at /tmp needs to be large enough to handle multiple concurrent file uploads.
 matrix_dendrite_tmp_directory_size_mb: 500
 
-# Log levels
-matrix_dendrite_log_level: "warning"
-matrix_dendrite_log_path: "/var/log/dendrite"
-
 # Rate limits
 matrix_dendrite_rate_limiting_enabled: true
 matrix_dendrite_rate_limiting_threshold: 5

roles/matrix-dendrite/tasks/dendrite/setup_install.yml

@@ -17,14 +17,6 @@
     group: "{{ matrix_user_groupname }}"
   when: "not local_path_media_store_stat.failed and not local_path_media_store_stat.stat.exists"
 
-- name: Ensure Dendrite log path exists
-  file:
-    path: "{{ matrix_dendrite_log_path }}"
-    state: directory
-    mode: 0644
-    owner: "{{ matrix_user_username }}"
-    group: "{{ matrix_user_groupname }}"
-
 - name: Ensure Dendrite Docker image is pulled
   docker_image:
     name: "{{ matrix_dendrite_docker_image }}"

roles/matrix-dendrite/templates/dendrite/dendrite.yaml.j2

@@ -335,8 +335,4 @@ tracing:
 
 # Logging configuration, in addition to the standard logging that is sent to
 # stdout by Dendrite.
-logging:
+logging: []
-- type: file
-  level: {{ matrix_dendrite_log_level }}
-  params:
-    path: /var/log/dendrite

roles/matrix-dendrite/templates/dendrite/systemd/matrix-dendrite.service.j2

@@ -37,7 +37,6 @@ ExecStart={{ matrix_host_command_docker }} run --rm --name matrix-dendrite \
 			{% endif %}
 			--mount type=bind,src={{ matrix_dendrite_config_dir_path }},dst=/data,ro \
 			--mount type=bind,src={{ matrix_dendrite_storage_path }},dst=/matrix-media-store-parent,bind-propagation=slave \
-			--mount type=bind,src={{ matrix_dendrite_log_path }},dst=/var/log/dendrite,bind-propagation=slave \
 			{% for volume in matrix_dendrite_container_additional_volumes %}
 			-v {{ volume.src }}:{{ volume.dst }}:{{ volume.options }} \
 			{% endfor %}