updated so that only the remove role is executed
diff --git a/postgresql-remove.yml b/postgresql-remove.yml
index 1b70dd8..7fab4bc 100644
--- a/postgresql-remove.yml
+++ b/postgresql-remove.yml
@@ -11,5 +11,4 @@
   vars_files:
   - ~/.apigee/credentials.yml
   roles:
-  - apigee-opdk-setup-postgresql-add
   - apigee-opdk-setup-postgresql-remove