Fix cronjobs for Drush 9

tasks/config-9.yml

 ---
 # file: roles/drush/tasks/config-9.yml
 
-- include_tasks: 'config-8.yml'
-
 - block:
   - set_fact:
       webRoot='/var/www{{ drupal.webRoot|default("") }}'
@@ -47,7 +45,7 @@
 
 - name: "Install cron for core-cron"
   cron:
-    name: 'Run Drush Cron on @{{ inventory_hostname }}.{{ drushSubkey }}'
+    name: 'Run Drush Cron on {{ drushAlias }}'
     month: '{{ drush_cron_core.month|default(omit) }}'
     day: '{{ drush_cron_core.day|default(omit) }}'
     weekday: '{{ drush_cron_core.weekday|default(omit) }}'