1. add task delete mrzcpd memory.conf and uninstall redis

2. modify stop telegraf_collect to delete telegraf_collect file

tasks/uninstall_redis40u.yml

@@ -0,0 +1,14 @@
+- hosts: adc_mcn3
+  remote_user: root
+  tasks:
+    - name: 'redis service stop'
+      systemd:
+        name: redis
+        enabled: no
+        daemon_reload: yes
+        state: stopped
+        
+    - name: remove the redis40u
+      yum:
+        name: redis40u
+        state: absent