sctp: delete the nested flexible array skip
This patch deletes the flexible-array skip[] from the structure
sctp_ifwdtsn/fwdtsn_hdr to avoid some sparse warnings:
# make C=2 CF="-Wflexible-array-nested" M=./net/sctp/
net/sctp/stream_interleave.c: note: in included file (through include/net/sctp/structs.h, include/net/sctp/sctp.h):
./include/linux/sctp.h:611:32: warning: nested flexible array
./include/linux/sctp.h:628:33: warning: nested flexible array
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>