fix idempotence; remove spurious tags

tsm-backup/tasks/main.yml

 ---
-# file: tsm-backup/tasks/main.yml
 
 - name: ensure systemd service file for dsmcad is available
   file:
@@ -10,8 +9,6 @@
     - reload systemd service files
   tags:
     - tsm
-    - config
-    - service
 
 - name: ensure systemd service file for dsmc sched is absent
   file:
@@ -29,7 +26,6 @@
     state: stopped
   tags:
     - tsm
-    - service
   when: cleanup.changed
 
 - meta: flush_handlers
@@ -42,12 +38,11 @@
     - restart tsm service
   tags:
     - tsm
-    - config
 
 - name: ensure the _optional_ config is present
   file:
     path: /opt/tivoli/tsm/client/ba/bin/dsm.opt
-    state: touch
+    state: file
   notify:
     - restart tsm service
   tags: