Remove deprecated features

Author: wouterj

CHANGELOG.md

@@ -1,8 +1,11 @@
 Changelog
 =========
 
-* **2016-06-21**: [BC BREAK] Dropped PHP <5.5 support.
-* **2016-06-21**: [BC BREAK] Dropped Symfony <2.8 support.
+ * **2016-06-21**: [BC BREAK] Deleted the `sonata_admin` bundle set.
+ * **2016-06-21**: [BC BREAK] Deleted the `LoadBaseData` data fixtures.
+ * **2016-06-21**: [BC BREAK] Deleted the `Content` document.
+ * **2016-06-21**: [BC BREAK] Dropped PHP <5.5 support.
+ * **2016-06-21**: [BC BREAK] Dropped Symfony <2.8 support.
 
 1.3.0
 -----

src/DataFixtures/PHPCR/LoadBaseData.php

@@ -61,11 +61,6 @@ public function __construct($env, $debug)
             $baseSonataBundles[] = 'Sonata\jQueryBundle\SonatajQueryBundle';
         }
 
-        $this->registerBundleSet('sonata_admin', array_merge(array(
-            'Sonata\DoctrinePHPCRAdminBundle\SonataDoctrinePHPCRAdminBundle',
-            'Symfony\Cmf\Bundle\TreeBrowserBundle\CmfTreeBrowserBundle',
-        ), $baseSonataBundles));
-
         $this->registerBundleSet('sonata_admin_orm', array_merge(array(
             'Sonata\DoctrineORMAdminBundle\SonataDoctrineORMAdminBundle',
         ), $baseSonataBundles));
@@ -119,10 +114,6 @@ public function requireBundleSets(array $names)
      */
     public function requireBundleSet($name)
     {
-        if ('sonata_admin' === $name) {
-            @trigger_error('The "sonata_admin" bundleset is deprecated since version 1.1 and will be removed in 2.0. Use the "sonata_admin_phpcr" bundleset instead.', E_USER_DEPRECATED);
-        }
-
         if (!isset($this->bundleSets[$name])) {
             throw new \InvalidArgumentException(sprintf(
                 'Bundle set %s has not been registered, available bundle sets: %s',