staging/lustre/ldlm: Remove unused round_timeout function

It's not referenced anywhere anymore.
Reported-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NOleg Drokin <green@linuxhacker.ru>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c

@@ -71,11 +71,6 @@ struct ldlm_cb_async_args {
 
 static struct ldlm_state *ldlm_state;
 
-inline unsigned long round_timeout(unsigned long timeout)
-{
-	return cfs_time_seconds((int)cfs_duration_sec(cfs_time_sub(timeout, 0)) + 1);
-}
-
 #define ELT_STOPPED   0
 #define ELT_READY     1
 #define ELT_TERMINATE 2