Index: kernel/generic/include/proc/task.h
===================================================================
--- kernel/generic/include/proc/task.h	(revision 6eef3c4403b57fc01e6b79237e6cc0a6a6a7d016)
+++ kernel/generic/include/proc/task.h	(revision 4802dd7d8d17cb02ec8f79547ffde538bb8c6736)
@@ -94,5 +94,4 @@
 	phone_t phones[IPC_MAX_PHONES];
 	stats_ipc_t ipc_info;   /**< IPC statistics */
-	list_t sync_boxes;      /**< List of synchronous answerboxes. */
 	event_t events[EVENT_TASK_END - EVENT_END];