remove VarEff type
remove VarEff type

The package VarEff is no longer on CRAN. It was apparently archived
in March (notice on CRAN page):

> Package ‘VarEff’ was removed from the CRAN repository.
>
> Formerly available versions can be obtained from the archive.
>
> Archived on 2015-03-03 as misuse of \donttest was not corrected.

bjcochrane/popgenInfo,NESCent/popgenInfo