Remove the CommentedType class from tests

tests/Doctrine/Tests/Types/CommentedType.php

-<?php
-
-namespace Doctrine\Tests\Types;
-
-use Doctrine\DBAL\Platforms\AbstractPlatform;
-use Doctrine\DBAL\Types\Type;
-
-use function strtoupper;
-
-class CommentedType extends Type
-{
-    /**
-     * {@inheritDoc}
-     */
-    public function getName()
-    {
-        return 'my_commented';
-    }
-
-    /**
-     * {@inheritDoc}
-     */
-    public function getSQLDeclaration(array $fieldDeclaration, AbstractPlatform $platform)
-    {
-        return strtoupper($this->getName());
-    }
-
-    /**
-     * {@inheritDoc}
-     */
-    public function requiresSQLCommentHint(AbstractPlatform $platform)
-    {
-        return true;
-    }
-}