User has 'Delete Marketing Asset' permission in Marketing Activities but is unable to delete a smart list. The Limited Access message below is being returned:
"You do not have sufficient privileges to perform this action"
In order for a user to have permission to delete a smart list in Marketing Activities, the user would need to have access to Marketing Activities and have the 'Delete List' permission.
see article for list of permissions: http://docs.marketo.com/display/public/DOCS/Descriptions+of+Role+Permissions