Remove the private option from include_role

The private option on include role was never implemented and
will no longer be developed. This change removes the option
so ansible no longer raises a deprecation warning.

Change-Id: I11ca7c3beed3bdabd6fcb517242a41180d1a4e63
Signed-off-by: Kevin Carter <kevin@cloudnull.com>

tasks/main.yml

@@ -83,7 +83,6 @@
 - name: Run the systemd service role
   include_role:
     name: systemd_service
-    private: true
   vars:
     systemd_user_name: "{{ zun_system_user_name }}"
     systemd_group_name: "{{ zun_system_group_name }}"
@@ -111,7 +110,6 @@
 - name: Run the etcd service role
   include_role:
     name: etcd
-    private: true
   vars:
     etcd_cluster_group: "zun_api"
   when:

tasks/zun_db_setup.yml

@@ -16,7 +16,6 @@
 - name: Run the galera client role
   include_role:
     name: galera_client
-    private: true
 
 - name: Create DB for service
   mysql_db:

tasks/zun_install.yml

@@ -38,7 +38,6 @@
 - name: Install the python venv
   include_role:
     name: "python_venv_build"
-    private: yes
   vars:
     venv_install_destination_path: "{{ zun_bin | dirname }}"
     venv_install_distro_package_list: "{{ zun_distro_packages }}"