clear_transaction_record_state

# File activerecord/lib/active_record/transactions.rb, line 336
    def clear_transaction_record_state #:nodoc:
      if defined?(@_start_transaction_state)
        @_start_transaction_state[:level] = (@_start_transaction_state[:level] || 0) - 1
        remove_instance_variable(:@_start_transaction_state) if @_start_transaction_state[:level] < 1
      end
    end