Index: uspace/lib/c/include/async.h
===================================================================
--- uspace/lib/c/include/async.h	(revision 24abb85d299db39cc03f429adc41bb1ed4f23e23)
+++ uspace/lib/c/include/async.h	(revision e5f5ce03f9fc114c279f31bd164daf4e6dd8425e)
@@ -343,5 +343,4 @@
     sysarg_t *, sysarg_t *);
 
-extern async_sess_t *async_clone_establish(exch_mgmt_t, async_exch_t *);
 extern async_sess_t *async_connect_me_to(exch_mgmt_t, async_exch_t *, sysarg_t,
     sysarg_t, sysarg_t);
@@ -472,6 +471,4 @@
     sysarg_t, sysarg_t, sysarg_t, ipc_call_t *);
 
-extern int async_exchange_clone(async_exch_t *, async_exch_t *);
-extern async_sess_t *async_clone_receive(exch_mgmt_t);
 extern async_sess_t *async_callback_receive(exch_mgmt_t);
 extern async_sess_t *async_callback_receive_start(exch_mgmt_t, ipc_call_t *);