updates for adding pg master standby config to dev portal

tasks/main.yml

diff --git a/tasks/main.yml b/tasks/main.yml
index 26ed517..a70b833 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -1,10 +1,5 @@
 ---
 # tasks file for apigee-opdk-devportal-postgres-config
-- name: Construct name of dev portal response file
-  cache:
-    key: 'opdk_portal_db_config_file'
-    value: '{{ opdk_installer_path }}/edge-devportal-db-response-{{ opdk_version }}-{{ region }}.conf'
-
 - name: Remove the old dev portal db response file
   file:
     path: "{{ opdk_portal_db_config_file }}"