Deprecate is_RealField, is_ComplexField, is_RealDoubleField, is_ComplexDoubleField #32610
Description
Follow up from #32566, which introduced the new pattern isinstance(..., sage.rings.abc.RealField)
Depends on #32566
Depends on #32606
Component: refactoring
Author: Matthias Koeppe
Branch/Commit: 8cc3500
Reviewer: Travis Scrimshaw
Issue created by migration from https://trac.sagemath.org/ticket/32610