The packages network/legacy-remote-utilities and service/network/legacy-remote-utilities have been split in #OracleSolaris 11.4.63 to allow better control over which servers and clients are installed, and to allow sites to remove the insecure legacy BSD sockets software while retaining the ONC-RPC software.
These packages are no longer included in the system provided install groups, so sites that still need these will need to add them to the list of packages to install on fresh installations.