Removed ssh key generation because administrator doesn't need to connect to other pcs

roles/native-user-administrator/Readme.md

@@ -1,4 +1,6 @@
 # Role Administrator
 This role creates an standard administrator user.
-This user needs to type in his password before executing sudo. 
+This user needs to type in his password before executing sudo.
 For security reasons it's recommended to use this user instead of the standard root user.
+This user should not be used to login to other systems. It's just there to let administration tasks run.
+For this reason no ssh-keys are generated.

roles/native-user-administrator/tasks/main.yml

@@ -1,9 +1,6 @@
 - name: create administrator
   user:
     name: administrator
-    generate_ssh_key: yes
-    ssh_key_bits: 4096
-    ssh_key_file: .ssh/id_rsa
     update_password: on_create
     password: "{{ user_administrator_initial_password | password_hash('sha512') }}"