Disable Sensu support by default

Change-Id: I8dfaaded621b5c554c5086dbd8052c12d8dd1b87
diff --git a/metadata/service/support.yml b/metadata/service/support.yml
index 6f76ed5..9876a1e 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
       config: