src/keyexchange.c, src/keyexchange.h, src/lsh_keygen.c,
src/lshd.c, src/publickey_crypto.h, src/server_session.c,
src/server_userauth.c, src/server_userauth.h, src/sexp.c,
src/sexp_parser.c, src/spki.c, src/spki_commands.c,
src/srp_exchange.c, src/tcpforward.c, src/werror.c: Removed old
dead code.

Rev: src/command.h:1.45
Rev: src/connection.c:1.55
Rev: src/exception.c:1.15
Rev: src/io.c:1.108
Rev: src/keyexchange.c:1.68
Rev: src/keyexchange.h:1.46
Rev: src/lsh_keygen.c:1.21
Rev: src/lshd.c:1.93
Rev: src/publickey_crypto.h:1.37
Rev: src/server_session.c:1.43
Rev: src/server_userauth.c:1.28
Rev: src/server_userauth.h:1.13
Rev: src/sexp.c:1.30
Rev: src/sexp_parser.c:1.16
Rev: src/spki.c:1.20
Rev: src/spki_commands.c:1.8
Rev: src/srp_exchange.c:1.6
Rev: src/tcpforward.c:1.49
Rev: src/werror.c:1.46