Move pyvmomi install into cloud test plugin.

test/integration/targets/vmware_datastore_maintenancemode/tasks/main.yml

@@ -3,11 +3,6 @@
 # GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
 
 # TODO: vcsim does not support datastore maintenance mode properties
-#- name: make sure pyvmomi is installed
-#  pip:
-#    name: pyvmomi
-#    state: latest
-#  when: "{{ ansible_user_id == 'root' }}"
 
 #- name: store the vcenter container ip
 #  set_fact: