Merge pull request modelcontextprotocol#1833 from LucaButBoring/fix/cancel-task

Remove deprecated taskId from cancellation notification

Author: localden

docs/specification/draft/schema.mdx

@@ -210,11 +210,6 @@ export interface CancelledNotificationParams extends NotificationParams {
    */
   requestId?: RequestId;
 
-  /**
-   * Deprecated: Use the `tasks/cancel` request instead of this notification for task cancellation.
-   */
-  taskId?: string;
-
   /**
    * An optional string describing the reason for the cancellation. This MAY be logged or presented to the user.
    */