Removed legacy PermissionEmbed class

It was used for the old permission saving system and is not needed anymore

src/Entity/UserSystem/User.php

@@ -207,11 +207,6 @@ class User extends AttachmentContainingDBElement implements UserInterface, HasPe
      */
     protected bool $need_pw_change = true;
 
-    /**
-     * //@ORM\Column(type="json").
-     */
-    //protected $roles = [];
-
     /**
      * @var string|null The hashed password
      * @ORM\Column(type="string", nullable=true)
@@ -272,11 +267,6 @@ class User extends AttachmentContainingDBElement implements UserInterface, HasPe
      */
     protected PermissionData $permissions;
 
-    /** @var PermissionsEmbed
-     * @ORM\Embedded(class="PermissionsEmbed", columnPrefix="perms_")
-     */
-    protected $permissions_old;
-
     /**
      * @var DateTime the time until the password reset token is valid
      * @ORM\Column(type="datetime", nullable=true)