tipc: remove unreferenced functions

We can now remove a number of functions which have become obsolete
and unreferenced through this commit series. There are no functional
changes in this commit.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc net/tipc/bcast.c
Simple merge

diff --cc net/tipc/bcast.h
Simple merge

diff --cc net/tipc/link.c
Simple merge

diff --cc net/tipc/link.h
Simple merge

diff --cc net/tipc/msg.c
Simple merge

diff --cc net/tipc/msg.h
Simple merge

diff --cc net/tipc/port.c
Simple merge

diff --cc net/tipc/port.h
Simple merge