fixed bug with postgres

tasks/main.yml

diff --git a/tasks/main.yml b/tasks/main.yml
index 8b2f44e..ef3fe99 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -11,7 +11,3 @@
     mode: 0700
     state: directory
   when: opdk_version | version_compare('4.16.01', '>=')
-
-- name: Postgresql Server installation
-  shell: '{{ apigee_setup }} -p ps -f {{ opdk_installation_config_file }}'
-  when: opdk_version | version_compare('4.16.01', '>=')