[3.0] fix mocking of some methods

Author: xabbuh

src/Symfony/Component/Form/Tests/Extension/Validator/Constraints/FormValidatorTest.php

@@ -623,8 +623,6 @@ public function testNoViolationIfAllowExtraData()
 
         $context->expects($this->never())
             ->method('addViolation');
-        $context->expects($this->never())
-            ->method('addViolationAt');
 
         $this->validator->initialize($context);
         $this->validator->validate($form, new Form());

src/Symfony/Component/Form/Tests/Extension/Validator/ValidatorExtensionTest.php

@@ -38,10 +38,6 @@ public function test2Dot5ValidationApi()
             ->method('addPropertyConstraint')
             ->with('children', $this->isInstanceOf('Symfony\Component\Validator\Constraints\Valid'));
 
-        $validator
-            ->expects($this->never())
-            ->method('getMetadataFactory');
-
         $extension = new ValidatorExtension($validator);
         $guesser = $extension->loadTypeGuesser();