Since we don't need backwards compatibility we can remove most multiplicated functions:
dns_acl_match()dns_aclelement_match()dns_adb_createfind()dns_adb_probesize()dns_byaddr_createptrname()dns_cache_create()dns_client_createx()dns_db_dump()dns_db_load()dns_dispatch_addresponse()dns_dispatch_createtcp()dns_dispatch_gettcp()dns_dnssec_findmatchingkeys()dns_dnssec_findzonekeys()dns_dnssec_verify()dns_dt_create()dns_fwdtable_find()dns_iptable_addprefix()dns_keytable_add()dns_master_dump()dns_master_dumpinc()dns_master_dumptostream()dns_master_loadfile()dns_master_loadfileinc()dns_master_stylecreate()dns_message_logfmtpacket()dns_message_logpacket()dns_request_createraw()dns_request_createvia()dns_resolver_createfetch()dns_ssutable_checkrules()dns_ttl_totext()dns_view_find()dns_view_findzonecut()dns_view_flushcache()dns_view_setcache()dns_xfrin_create()dns_zone_dumptostream()dns_zone_forwardupdate()dns_zone_getoptions()dns_zone_getserial()dns_zone_notifyreceive()dns_zone_setfile()dns_zone_setoption()dns_zt_apply()dst_context_create()dst_key_generate()dst_lib_init()