Remove app credentials accidentally checked into the project

The credentials have been revoked so do not present a security
issue.

app-cred-k8s-jpr-openrc.sh

-#!/usr/bin/env bash
-
-export OS_AUTH_TYPE=v3applicationcredential
-export OS_AUTH_URL=https://keystone.k8s.rc.uab.edu:5000/v3
-export OS_IDENTITY_API_VERSION=3
-export OS_REGION_NAME="RegionOne"
-export OS_INTERFACE=public
-export OS_APPLICATION_CREDENTIAL_ID=85eb330c718a43ef93b1e94d3c286a54
-export OS_APPLICATION_CREDENTIAL_SECRET=tQ4U6WeKnePOefEEeEaZdmb8botwXYJKxZBYWw-YXh1iie6KdExlIJhBBO2vz7lz8hubIrObj6VSD_ZQlW65pw