DWARF unwind info was superseded by compact unwind as-of macOS 10.9 and iOS 7.0
(circa 2013). Most often, DWARF unwind info is entirely redundant and can be
discarded. In rare instances, complex unwind info cannot be represented by a
compact-unwind entry, and we fall-back to the DWARF frame info.
The intelligent approach is to filter-out all redundant entries in the
__TEXT,__eh_frame section, leaving only those that are necessary fallbacks
when compact unwind is insufficient. However, that's not easy, so unless and
until (maybe later today!) we have a use case that requires the intelligent
approach, we offer the choice of all or nothing.