sctp: remove macros sctp_bh_[un]lock_sock

Redefined bh_[un]lock_sock to sctp_bh[un]lock_sock for user
space friendly code which we haven't use in years, so removing them.

Signed-off-by: Wang Weidong <wangweidong1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc include/net/sctp/sctp.h
Simple merge

diff --cc net/sctp/input.c
Simple merge

diff --cc net/sctp/protocol.c
Simple merge

diff --cc net/sctp/sm_sideeffect.c
Simple merge

diff --cc net/sctp/socket.c
Simple merge