(do_channel_write_extended): -"-

* abstract_io.h channel.c channel.h channel_commands.c client.c
command.c gc.c gc.h io.c lsh.c lsh.h lsh_writekey.c lshd.c
read_data.c read_packet.c server_password.c service.h sexp_conv.c
sexp_parser.c sexp_streamed_parser.c tcpforward_commands.c
tcpforward_commands.h werror.c: Cleaned up and deleted old dead
code.

Rev: src/channel.c:1.57