Removing macros.R


(This message is cross-posted to the Fedora devel and R SIG Fedora
mailing lists.)

Currently, R-core installs macros.R which defines one macro:
%_R_make_search_index /usr/lib/rpm/

This script does nothing, and there is no mention of this macro in our
guidelines. The macro is used by one package, R-systemfit. The script
is not used.

According to the R %changelog, it was disabled in 2009.

I would like to clean this up, and will do so in approximately a week,
and/or whenever the mass rebuild finishes.