python-pyyaml: drop and use the recipe from meta-python

* 3.11 version is in meta-python since morty
  http://git.openembedded.org/meta-openembedded/commit/?id=4100a96a5a98987910f17b317488bb2a86d50514
* the meta-ros version was missing dependency on libyaml and python-cython-native which
  was in meta-oe version for very long time since denzil
  http://git.openembedded.org/meta-openembedded/commit/?id=89500c583e0f1dc1b4ffdf72914e08e505e427e0

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>