remove docker config for telegraf and corrected key name

roles/server/files/telegraf.d/input_docker.conf

@@ -1,14 +0,0 @@
-[[inputs.docker]]
-  endpoint = "unix:///var/run/docker.sock"
-  gather_services = true
-  container_names = []
-  source_tag = false
-  container_name_include = []
-  container_name_exclude = []
-  timeout = "5s"
-  perdevice = false
-  perdevice_include = ["cpu", "blkio", "network"]
-  total = false
-  total_include = ["cpu", "blkio", "network"]
-  docker_label_include = []
-  docker_label_exclude = []

roles/server/files/telegraf.d/output_influx.conf

@@ -9,7 +9,7 @@
 
   ## Wenn die DB nicht erreichbar ist, nicht zu lange blockieren:
   ## nur wenige Wiederholungen
-  write_timeout = "3s"
+  timeout = "3s"
   ## Ab Telegraf 1.20+ sinnvoll:
   http_headers = { "Connection" = "close" }