[2.6] CS Fixes And Removed An Unused Import

Author: GrahamCampbell

Normalizer/PropertyNormalizer.php

@@ -180,7 +180,7 @@ public function supportsDenormalization($data, $type, $format = null)
     /**
      * Format an attribute name, for example to convert a snake_case name to camelCase.
      *
-     * @param  string $attributeName
+     * @param string $attributeName
      *
      * @return string
      */

Tests/Normalizer/PropertyNormalizerTest.php

@@ -151,12 +151,12 @@ public function provideCallbacks()
             array(
                 array(
                     'bar' => function ($bar) {
-                        return null;
+                        return;
                     },
                 ),
                 'baz',
                 array('foo' => '', 'bar' => null),
-                'Null an item'
+                'Null an item',
             ),
             array(
                 array(