Second cleanup of rmcd and smc code

h/rmc.h

h/rmc_api.h

h/rmc_smcsubr.h

h/rmc_smcsubr2.h

h/sendscsicmd.h

h/smc_constants.h

h/smc_struct.h

rmc/Imakefile

rmc/rmc_procreq.c

rmc/rmc_serv.c

rmc/rmclogit.c

rmc/smc.c

rmc/smcsubr.c

rmc/smcsubr2.c

rmc/usrmsg.c

tape/rbtsubr.c

tape/sendscsicmd.c