chore: Remove telegraf

Replaced by Prometheus and Prometheus exporters.

Signed-off-by: Julien Riou <julien@riou.xyz>

templates/telegraf/influxdata.list.j2

@@ -1,2 +0,0 @@
-{{ ansible_managed | comment }}
-deb https://repos.influxdata.com/{{ ansible_distribution | lower }} {{ ansible_distribution_release }} stable

templates/telegraf/inputs.conf.j2

@@ -1,39 +0,0 @@
-{{ ansible_managed | comment }}
-
-[[inputs.cpu]]
-  percpu = false
-  totalcpu = true
-  collect_cpu_time = false
-  report_active = false
-
-[[inputs.disk]]
-  mount_points = ["/", "/boot"]
-
-[[inputs.diskio]]
-  devices = ["mmcblk0"]
-
-[[inputs.kernel]]
-[[inputs.mem]]
-[[inputs.processes]]
-[[inputs.swap]]
-[[inputs.system]]
-[[inputs.net]]
-  interfaces = ["eth0", "tun0"]
-
-[[inputs.sensors]]
-
-[[inputs.ping]]
-  urls = ["{{ telegraf_ping_ip }}"]
-  count = 3
-  ping_interval = 1.0
-  timeout = 1.0
-
-[[inputs.mqtt_consumer]]
-  servers = {{ telegraf_mqtt_consumer_servers }}
-  topics = {{ telegraf_mqtt_consumer_topics }}
-  persistent_session = true
-  client_id = "telegraf"
-  data_format = "value"
-  data_type = "float"
-  username = "{{ telegraf_mqtt_consumer_username }}"
-  password = "{{ telegraf_mqtt_consumer_password }}"

templates/telegraf/output.conf.j2

@@ -1,10 +0,0 @@
-{{ ansible_managed | comment }}
-
-[[outputs.influxdb]]
-  urls = {{ telegraf_influxdb_urls }}
-  database = "{{ telegraf_influxdb_database }}"
-  skip_database_creation = true
-  username = "{{ telegraf_influxdb_username }}"
-  password = "{{ telegraf_influxdb_password }}"
-  insecure_skip_verify = true
-  content_encoding = "gzip"