Fixes rubocop

Author: imaximix

spec/dynamoid/persistence_spec.rb

@@ -2294,7 +2294,6 @@ def around_update_callback
     end
 
     context 'when disable_create_table_on_save is false' do
-
       before do
         Dynamoid.configure do |config|
           @original_create_table_on_save = config.create_table_on_save
@@ -2318,7 +2317,6 @@ def around_update_callback
     end
 
     context 'when disable_create_table_on_save is false and the table exists' do
-
       before do
         Dynamoid.configure do |config|
           @original_create_table_on_save = config.create_table_on_save