slimed down enqueue

ckanext/odsh/pdf_to_thumbnail/enqueue.py

@@ -22,11 +22,9 @@ def enqueue_after_update(context, resource):
     create_thumbnail_for_last_resource(resources, private, package_id)
 
 def enqueue_after_delete(context, resources):
-    if len(resources) > 0:
     package = context.get('package')
     private = package.private
     package_id = package.id
-        first_resource = resources[0]
             
     # without the background job
     create_thumbnail_for_last_resource(resources, private, package_id)