pyln.spec.bolt*: unify setups.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

contrib/pyln-spec/bolt4/setup.py

@@ -1,24 +1,4 @@
 from pyln.spec.bolt4 import __version__, desc
-from setuptools import setup
-import io
+from boltsetup import bolt_setup
 
-with io.open('requirements.txt', encoding='utf-8') as f:
-    requirements = [r for r in f.read().split('\n') if len(r)]
-
-
-def do_setup(boltnum: int, version: str, desc: str):
-    setup(name='pyln-bolt{}'.format(boltnum),
-          version=version,
-          description=desc,
-          url='http://github.com/ElementsProject/lightning',
-          author='Rusty Russell',
-          author_email='rusty@rustcorp.com.au',
-          license='MIT',
-          packages=['pyln.spec.bolt{}'.format(boltnum)],
-          package_data={'pyln.proto.message': ['py.typed']},
-          scripts=[],
-          zip_safe=True,
-          install_requires=requirements)
-
-
-do_setup(4, __version__, desc)
+bolt_setup(4, __version__, desc)