Index: uspace/lib/c/generic/async_obsolete.c
===================================================================
--- uspace/lib/c/generic/async_obsolete.c	(revision 9934f7d3082d2ffdd107cc0c78d61d504b0f401e)
+++ uspace/lib/c/generic/async_obsolete.c	(revision e6910c8cba8ef767d08e484d4d27dc60eb1d67ef)
@@ -166,14 +166,4 @@
 }
 
-void async_obsolete_serialize_start(void)
-{
-	fibril_inc_sercount();
-}
-
-void async_obsolete_serialize_end(void)
-{
-	fibril_dec_sercount();
-}
-
 /** Wrapper for IPC_M_DATA_WRITE calls using the async framework.
  *