Revert "Run FreePBX install everytime regardless of if it has been run before"

This reverts commit d7f88712bc.

roles/pbx/tasks/freepbx.yml

@@ -95,8 +95,7 @@
   command: "{{ item }}"
   args:
     chdir: "{{ freepbx_src_dir }}"
-    #FIXME: The install is currently run everytime, as some unforeseen issues happen in reruns sometimes which I haven't been able to pin down.
-    #creates: "{{ freepbx_install_dir }}"
+    creates: "{{ freepbx_install_dir }}"
   with_items:
     - ./start_asterisk start
     - ./install -n --webroot {{ freepbx_install_dir }} --dbuser {{ asterisk_db_user }} --dbpass {{ asterisk_db_password }} --dbname {{ asterisk_db_dbname }} --cdrdbname {{ asterisk_db_cdrdbname }}