Issue #2443709 by Xano, mikeryan, benjy: Some plugin annotations contains...

Issue #2443709 by Xano, mikeryan, benjy: Some plugin annotations contains legacy "derivative" property

core/lib/Drupal/Core/Block/Annotation/Block.php

@@ -43,11 +43,4 @@ class Block extends Plugin {
    */
   public $category = '';
 
-  /**
-   * Class used to retrieve derivative definitions of the block.
-   *
-   * @var string
-   */
-  public $derivative = '';
-
 }

core/modules/migrate/src/Annotation/MigrateDestination.php

@@ -48,13 +48,4 @@ class MigrateDestination extends Plugin {
    */
   public $requirements_met = TRUE;
 
-  /**
-   * A class to make the plugin derivative aware.
-   *
-   * @var string
-   *
-   * @see \Drupal\Component\Plugin\Discovery\DerivativeDiscoveryDecorator
-   */
-  public $derivative;
-
 }

core/modules/views/src/Annotation/ViewsPluginAnnotationBase.php

@@ -15,15 +15,6 @@
  */
 abstract class ViewsPluginAnnotationBase extends Plugin implements AnnotationInterface {
 
-  /**
-   * A class to make the plugin derivative aware.
-   *
-   * @var string
-   *
-   * @see \Drupal\Component\Plugin\Discovery\DerivativeDiscoveryDecorator
-   */
-  public $derivative;
-
   /**
    * Whether or not to register a theme function automatically.
    *