Disable Sensu support by default

Change-Id: Ifa4b7653547e5ddfaa723e3c942c6a8692576b7f
diff --git a/metadata/service/support.yml b/metadata/service/support.yml
index 4f19089..eb376da 100644
--- a/metadata/service/support.yml
+++ b/metadata/service/support.yml
@@ -6,6 +6,6 @@
       heka:
         enabled: true
       sensu:
-        enabled: true
+        enabled: false
       sphinx:
         enabled: true