Disable Sensu support by default

Change-Id: If2f1b4d2d2f92ab63bfd7be630a256049e1c2af2
diff --git a/metadata/service/support.yml b/metadata/service/support.yml
index d9b8ab1..8e0ef24 100644
--- a/metadata/service/support.yml
+++ b/metadata/service/support.yml
@@ -6,7 +6,7 @@
       heka:
         enabled: true
       sensu:
-        enabled: true
+        enabled: false
       sphinx:
         enabled: true
       grafana: