[SKIP CI] fix namespace group removal

tasks/install.yml

@@ -43,7 +43,8 @@
     - name: Add namespace group
       group:
         name: "{{ dockerengine_nsremap_user }}"
-        state: "{{ 'present' if dockerengine_usernamespace_enabled | bool else 'absent' }}"
+        state: present
+      when: dockerengine_usernamespace_enabled | bool
 
     - name: Add namespace user
       user:
@@ -52,6 +53,12 @@
         shell: /sbin/nologin
         state: "{{ 'present' if dockerengine_usernamespace_enabled | bool else 'absent' }}"
 
+    - name: Add namespace group
+      group:
+        name: "{{ dockerengine_nsremap_user }}"
+        state: absent
+      when: not dockerengine_usernamespace_enabled | bool
+
     - name: Configure namespace id range
       lineinfile:
         dest: "{{ item }}"