Disable Sensu support by default

Change-Id: I2c45ed4d5ecc8528f818c168c31bc377fde5e81c
diff --git a/metadata/service/support.yml b/metadata/service/support.yml
index 11b9d49..95a2e7e 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: