Remove inputs.filestat from telegraf configuration

It makes no sense to monitor the filestats of local logfiles.

TrivialFix

Change-Id: I5ef060b57d2c88f922a05c59556ff5c96929f871

ansible/roles/telegraf/templates/telegraf.conf.j2

@@ -17,8 +17,6 @@
   retention_policy = "default"
   write_consistency = "any"
   timeout = "5s"
-[[inputs.filestat]]
-files = ["/var/log/kolla/**.log"]
 [[inputs.cpu]]
   percpu = true
   totalcpu = true