removes children_count from Comment

db/migrate/20150903142924_remove_children_count_from_comments.rb

@@ -0,0 +1,5 @@
+class RemoveChildrenCountFromComments < ActiveRecord::Migration
+  def change
+    remove_column :comments, :children_count, :integer, default: 0
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20150902120006) do
+ActiveRecord::Schema.define(version: 20150903142924) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -64,7 +64,6 @@ ActiveRecord::Schema.define(version: 20150902120006) do
     t.integer  "user_id",                        null: false
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.integer  "children_count",     default: 0
     t.datetime "hidden_at"
     t.integer  "flags_count",        default: 0
     t.datetime "ignored_flag_at"