Updated to better manage remote ldap

gce-remove.yml

diff --git a/gce-remove.yml b/gce-remove.yml
index f3477f1..50e695a 100644
--- a/gce-remove.yml
+++ b/gce-remove.yml
@@ -16,9 +16,13 @@
   tasks:
   - name: Remove instance
     gce:
-      instance_names: "{{ instance_names }}"
+      instance_names: "{{ item }}"
       zone: "{{ zone }}"
       project_id: "{{ project_id }}"
       service_account_email: "{{ service_account_email }}"
       credentials_file: '{{ credentials_file }}'
       state: deleted
+    with_items: "{{ instance_names | split(',') }}"
+    async: 45
+    poll: 0
+