when using ubuntu, dont remove apparmor

[munger1985]

playbooks/roles/openldap/tasks/debian.yml in the file, there is remove apparmor, but ubuntu os depends on snap, snap depends on apparmor, so i think we should remove this code

• name: Remove Apparmor package vars: package_name: - apparmor package_state: absent package_purge: true include_role: name: safe_yum