Remove dependency of Del\Common\Collection

src/Collection/AbstractCollection.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Del\Form\Collection;
+
+use ArrayIterator;
+
+class AbstractCollection extends ArrayIterator
+{
+
+}

src/Collection/CollectionInterface.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace Del\Form\Collection;
+
+interface CollectionInterface
+{
+
+}

src/Collection/FieldCollection.php

@@ -7,8 +7,6 @@
 
 namespace Del\Form\Collection;
 
-use Del\Common\Collection\AbstractCollection;
-use Del\Common\Collection\CollectionInterface;
 use Del\Form\Field\FieldInterface;
 
 class FieldCollection extends AbstractCollection implements CollectionInterface

src/Collection/FilterCollection.php

@@ -7,8 +7,6 @@
 
 namespace Del\Form\Collection;
 
-use Del\Common\Collection\AbstractCollection;
-use Del\Common\Collection\CollectionInterface;
 use Del\Form\Filter\FilterInterface;
 use InvalidArgumentException;
 

src/Collection/ValidatorCollection.php

@@ -7,8 +7,6 @@
 
 namespace Del\Form\Collection;
 
-use Del\Common\Collection\AbstractCollection;
-use Del\Common\Collection\CollectionInterface;
 use Del\Form\Validator\ValidatorInterface;
 use InvalidArgumentException;