This reverts part of f7dcb41c4c91bc18a29931eb4633ddd71fb58a0a, which originally changed catkin_pkg to use 'console_scripts' instead of bare 'scripts' files.
PEP 338 invocation can be useful when invoking catkin_pkg functionality with a specific interpreter, or without using setuptools to create the 'console_scripts' executables.
This reverts part of f7dcb41c4c91bc18a29931eb4633ddd71fb58a0a, which originally changed catkin_pkg to use 'console_scripts' instead of bare 'scripts' files.
PEP 338 invocation can be useful when invoking catkin_pkg functionality with a specific interpreter, or without using setuptools to create the 'console_scripts' executables.