Parent._is_numerical, _is_real_numerical - remove hard dependency on real_mpfr, complex_mpfr #32625
Description
This is for sagemath-polyhedra (#32432), which does not include the floating point fields
CC: @videlec @mezzarobba @tscrim @mjungmath
Component: refactoring
Author: Matthias Koeppe
Branch/Commit: bf0ed1d
Reviewer: Travis Scrimshaw
Issue created by migration from https://trac.sagemath.org/ticket/32625