remove more useless columns from cost query table

db/migrate/20101124150110_adjust_cost_query_layout_some_more.rb

@@ -0,0 +1,11 @@
+class AdjustCostQueryLayoutSomeMore < ActiveRecord::Migration
+  def self.up
+    remove_column :cost_queries, :display_cost_entries
+    remove_column :cost_queries, :display_time_entries
+  end
+
+  def self.down
+    add_column :cost_queries, :display_cost_entries, :boolean, :default => true
+    add_column :cost_queries, :display_time_entries, :boolean, :default => true
+  end
+end