Disable fluentd docker label by default

Reasons:
- logs from Docker containers provide info about
  LMA services work and are not necessarily useful for LMA user
- currently Docker logs are tagged with container ID,
  which lacks readability

Change-Id: Id2173a027a00eade2138ddfba3b42460c275e117
Related-bug: PROD-22238 (PROD:22238)
diff --git a/docker/meta/fluentd.yml b/docker/meta/fluentd.yml
index 5e41d2a..759614b 100644
--- a/docker/meta/fluentd.yml
+++ b/docker/meta/fluentd.yml
@@ -4,6 +4,7 @@
   config:
     label:
       docker:
+        enabled: false
         input:
           container:
             type: tail