remove invalid assert

Author: ebuerki-lf

roles/graylog_datanode/tasks/main.yml

@@ -7,13 +7,6 @@
       fail_msg: 'graylog_datanode__password_secret must at least 16 characters'
       quiet: true
 
-  - name: 'Validate graylog_datanode__node_search_cache_size'
-    ansible.builtin.assert:
-      that:
-        - 'graylog_datanode__password_secret | length >= 16'
-      fail_msg: 'graylog_datanode__password_secret must at least 16 characters'
-      quiet: true
-
   - name: 'Validate that graylog_datanode__node_search_cache_size follows OpenSearch Bytes format'
     ansible.builtin.assert:
       that: