Remove deprecated TYPE_DECLARATION_SET (rectorphp#3352)

Author: TomasVotruba

config/set/type-declaration-strict.php

@@ -126,12 +126,6 @@ final class SetList implements SetListInterface
      */
     public const TYPE_DECLARATION = __DIR__ . '/../../../config/set/type-declaration.php';
 
-    /**
-     * @deprecated Use only TYPE_DECLARATION instead
-     * @var string
-     */
-    public const TYPE_DECLARATION_STRICT = __DIR__ . '/../../../config/set/type-declaration-strict.php';
-
     /**
      * @var string
      */

packages/Set/ValueObject/SetList.php

@@ -17,22 +17,4 @@ final class PreferenceSelfThis
      * @var string
      */
     public const PREFER_SELF = 'prefer_self';
-
-    /**
-     * @api
-     * @deprecated Use direct constant
-     */
-    public static function PREFER_THIS(): string
-    {
-        return self::PREFER_THIS;
-    }
-
-    /**
-     * @api
-     * @deprecated Use direct constant
-     */
-    public static function PREFER_SELF(): string
-    {
-        return self::PREFER_SELF;
-    }
 }