Fix empty hash in f8a-chester template

The end to end tests when merging to master for this service are failing with an error message that looks like it has to with DC revisions (https://ci.centos.org/job/devtools-f8a-master-deploy-e2e-test/998/console). I figured this is the reason for that.

Signed-off-by: Avishkar Gupta <[email protected]>

bay-services/f8a-chester.yaml

@@ -1,11 +1,10 @@
 services:
-- hash:
+- hash: 8eb7ee9aa81c1f384b8db8597c758c52cf812790
   hash_length: 7
   name: f8a-chester
   environments:
   - name: staging
     parameters:
-      REPLICAS: 1
       CPU_REQUEST: 0.30
       CPU_LIMIT: 0.30
       FLASK_LOGGING_LEVEL: DEBUG