fixing code (SensioLabs Insights)

Author: Mauro Cassani

src/Command/StatisticsCommand.php

@@ -11,7 +11,6 @@
 namespace InMemoryList\Command;
 
 use Symfony\Component\Console\Helper\Table;
-use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Output\OutputInterface;