added defaults, removed old code

defaults/main.yml

@@ -0,0 +1,3 @@
+---
+docroot: /var/www/html
+domainname: "{{ inventory_hostname }}"

tasks/main.yml

@@ -9,16 +9,6 @@
   include_role:
     name: acmesh
 
-- name: set DocumentRoot
-  set_fact:
-    docroot: "/var/www/html"
-  when: docroot is not defined
-
-- name: set domainname
-  set_fact:
-    domainname: "{{ inventory_hostname }}"
-  when: domainname is not defined
-
 - name: create wwwroot
   file:
     path: "{{ docroot }}"