Remove unneeded roles from the installer directory

tools/docker-compose/ansible/roles/migrate/tasks/migrate-from-local-docker.yml

@@ -4,6 +4,7 @@
 - name: Remove awx_postgres to ensure consistent start state
   shell: |
     docker rm -f awx_postgres
+  ignore_errors: true
 
 - name: Start Local Docker database container
   docker_compose:
@@ -13,6 +14,10 @@
     state: present
     recreate: always
 
+- name: Wait for postgres to initialize
+  wait_for:
+    timeout: 3
+
 - name: Database dump to local filesystem
   shell: |
     docker-compose -f {{ old_docker_compose_dir }}/docker-compose.yml exec -T postgres pg_dumpall -U {{ pg_username }} > awx_dump.sql

tools/docker-compose/ansible/roles/sources/templates/docker-credential-plugins-override.yml

@@ -1,31 +0,0 @@
----
-version: '2'
-services:
-  # Primary Tower Development Container link
-  awx:
-    links:
-      - hashivault
-      - conjur
-  hashivault:
-    image: vault
-    container_name: tools_hashivault_1
-    ports:
-      - '8200:8200'
-    cap_add:
-      - IPC_LOCK
-    environment:
-      VAULT_DEV_ROOT_TOKEN_ID: 'vaultdev'
-
-  conjur:
-    image: cyberark/conjur
-    container_name: tools_conjur_1
-    command: server -p 8300
-    environment:
-      DATABASE_URL: postgres://awx@postgres/postgres
-      CONJUR_DATA_KEY: 'dveUwOI/71x9BPJkIgvQRRBF3SdASc+HP4CUGL7TKvM='
-    depends_on:
-      - postgres
-    links:
-      - postgres
-    ports:
-      - "8300:8300"