Withdraw logwtmp.c from time zone distribution?

The file "logwtmp.c" is part of the time zone package to ensure that a "date" command can be compiled. The time zone Makefile notes that: # We use the system's logwtmp in preference to ours if available. Well then: are there any systems out there today that need the time zone package's version of logwtmp.c? If there aren't, we can drop logwtmp.c from the package. If there are, we need to provide compile-time control over whether time stamps written to the log file are four bytes (to be compatible with historic practice) or eight bytes (the emerging width of time stamps). --ado