complete mpir deletion #32727
Description
there are leftovers:
build/pkgs/mpir/distros/void.txt, and in the list of deps in build/pkgs/4ti2/spkg-configure.m4
Component: build: configure
Author: Dima Pasechnik
Branch/Commit: a650a7d
Reviewer: Matthias Koeppe
Issue created by migration from https://trac.sagemath.org/ticket/32727