refframe: ecl_FK4

[BaptisteCecconi]

Should ecl_FK4 be deprecated?
Its description starts with "old", as for the other deprecated terms.

[msdemlei]

On Fri, Nov 15, 2024 at 10:15:43AM -0800, Baptiste Cecconi wrote: Should `ecl_FK4` be deprecated? Its description starts with "old", as for the other deprecated terms.

For all I care, we can deprecate all old-style VOTable terms. This would be a classic for a multi-term VEP, I'd say, but I think I don't care enough to write that myself...