macOS: Revert default Hi-DPI support in applications
This reverts !682 (merged). It breaks iOS applications that
do not use their own MACOSX_BUNDLE_INFO_PLIST
because NSApplication
is only for macOS apps. Until more complete support for iOS is added
to CMake (e.g. with a different default plist file) we must allow
our default plist file to work for both macOS and iOS.
Fixes: #17179 (closed)