ITS#4799 remove kerberos / kbind

servers/slapd/Makefile.in

servers/slapd/back-bdb/bind.c

servers/slapd/bconfig.c

servers/slapd/bind.c

servers/slapd/cancel.c

servers/slapd/config.c

servers/slapd/kerberos.c

servers/slapd/passwd.c

servers/slapd/proto-slap.h

servers/slapd/schema_prep.c

servers/slapd/slap.h

servers/slapd/txn.c