The native packages are not required anymore, because the needed
python scripts during compile time are also provided by the
cross-compiled packages and the python scripts are platform
independent. Only the catkin package is provided as native package.
The genlisp recipe is updated to 0.4.12 to be in line with
4551e7c32d/hydro/release.yaml.
The previously applied patch has been included in 0.4.12 and is
removed from the recipe and this repository.
The PR variable is reset.