Remove unused use statement (#2072)

Noticed in VS Code this appears to be an unused use statement

Co-authored-by: Sara McCutcheon <[email protected]>

src/Helpers/LocalMachineHelper.php

@@ -10,7 +10,6 @@
 use Robo\Common\IO;
 use Robo\Contract\ConfigAwareInterface;
 use Robo\Contract\IOAwareInterface;
-use Symfony\Component\Console\Output\ConsoleOutputInterface;
 use Symfony\Component\Filesystem\Filesystem;
 use Symfony\Component\Finder\Finder;
 use Symfony\Component\Process\Process;