Fix phpdoc and coding standards

This removes the unused use statements which were not catched by
PHP-CS-Fixer because of string occurences. It also fixes some invalid
phpdoc (scalar is not recognized as a valid type for instance).

Author: stof

RegistryInterface.php

@@ -12,7 +12,6 @@
 namespace Symfony\Bridge\Doctrine;
 
 use Doctrine\Common\Persistence\ManagerRegistry as ManagerRegistryInterface;
-use Doctrine\ORM\Configuration;
 use Doctrine\ORM\EntityManager;
 
 /**

Tests/DependencyInjection/CompilerPass/RegisterEventListenersAndSubscribersPassTest.php

@@ -25,7 +25,7 @@ protected function setUp()
     }
 
     /**
-     * @expectedException InvalidArgumentException
+     * @expectedException \InvalidArgumentException
      */
     public function testExceptionOnAbstractTaggedSubscriber()
     {
@@ -41,7 +41,7 @@ public function testExceptionOnAbstractTaggedSubscriber()
     }
 
     /**
-     * @expectedException InvalidArgumentException
+     * @expectedException \InvalidArgumentException
      */
     public function testExceptionOnAbstractTaggedListener()
     {

Tests/Form/Type/EntityTypeTest.php

@@ -12,7 +12,6 @@
 namespace Symfony\Bridge\Doctrine\Tests\Form\Type;
 
 use Symfony\Bridge\Doctrine\Test\DoctrineTestHelper;
-use Symfony\Component\Form\Exception\UnexpectedTypeException;
 use Symfony\Component\Form\Test\TypeTestCase;
 use Symfony\Bridge\Doctrine\Tests\Fixtures\GroupableEntity;
 use Symfony\Bridge\Doctrine\Tests\Fixtures\SingleIntIdEntity;

Tests/Validator/Constraints/UniqueEntityValidatorTest.php

@@ -22,7 +22,6 @@
 use Symfony\Bridge\Doctrine\Tests\Fixtures\AssociationEntity;
 use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
 use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntityValidator;
-use Symfony\Component\Validator\Validator;
 use Doctrine\ORM\Tools\SchemaTool;
 
 /**