Remove some totally unused functions

src/common/address.c

src/common/address.h

src/common/container.h

src/common/util.c

src/common/util.h

src/or/networkstatus.c

src/or/networkstatus.h

src/or/rendcommon.c

src/or/rendcommon.h

src/or/router.c

src/or/router.h

src/or/routerlist.c

src/or/routerlist.h