Let rails figure out which fields to select (#580)

Fixes #579

Co-authored-by: Thomas McDonald <thomas-mcdonald@users.noreply.github.com>

Author: Taeir

lib/rolify/adapters/active_record/resource_adapter.rb

@@ -21,7 +21,6 @@ def resources_find(roles_table, relation, role_name)
         resources = relation.joins("INNER JOIN #{quote_table(roles_table)} ON #{quote_table(roles_table)}.resource_type IN (#{relations}) AND
                                     (#{quote_table(roles_table)}.resource_id IS NULL OR #{quote_table(roles_table)}.resource_id = #{quote_table(relation.table_name)}.#{quote_column(relation.primary_key)})")
         resources = resources.where("#{quote_table(roles_table)}.name IN (?) AND #{quote_table(roles_table)}.resource_type IN (?)", Array(role_name), klasses)
-        resources = resources.select("#{quote_table(relation.table_name)}.*")
         resources
       end