* python3.8: bulk removal of now obsolete "_python38" packages.
Done via scripting. No functional change intended or expected.
Some manual tweaks will follow.
* python3.8: further manual tweaks after bulk-3.8-removal.
Unlike the previous commit with automated changes,
I've tested builds for *these* recipes in beta4 64 bits.
x86_64 is used as a baseline: the "x86_64" entry, whatever status it has,
is transformed into "all", and then the other entries in ARCHITECTURES
either dropped or rearranged appropriately.
lxml_python3 did not build on x86_gcc2h because lxml depends on
external libs. Adding support for x86 secondary arch is required
to be able to provide to the python3 subpackage the x86 2nd arch
builds of these libs.
Also make lxml_x86_python3 provide lxml_python3 to allow any-arch
python3 subpackages to depend on lxml_python3.
* Referring the current haiku version explicitly is not needed, since
the RequiresUpdater takes care of setting the version of Haiku used
for building a package.
