removed some text for the python-c binding

src/binary_c_python.c

@@ -25,29 +25,11 @@
  * (i.e. as pointers).
  *
  * See tests/python_API_test.py for an example of how to use these functions.
- *
- * Backup reading material for making C-extensions:
- * http://www-h.eng.cam.ac.uk/help/tpl/languages/mixinglanguages.html
- * https://realpython.com/build-python-c-extension-module/
- * https://docs.python.org/3/extending/extending.html
- * https://docs.python.org/3/c-api/arg.html#c.PyArg_ParseTuple
- * https://realpython.com/python-bindings-overview/
- * http://scipy-lectures.org/advanced/interfacing_with_c/interfacing_with_c.html
- * https://docs.python.org/3.6/c-api/capsule.html#c.PyCapsule_New
- * https://gist.github.com/Sleepingwell/5259476
- * https://bfroehle.com/2011/07/18/python-capsules/
- * https://docs.python.domainunion.de/3.6/howto/cporting.html
- * https://lappweb.in2p3.fr/~paubert/ASTERICS_HPC/5-6-3-651.html
- * https://www.geeksforgeeks.org/c-api-from-extension-module-in-python-set-1/
- * http://pageperso.lif.univ-mrs.fr/~francois.denis/IAAM1/python-3.6.5rc1-docs-html/howto/cporting.html
- * http://python3porting.com/cextensions.html
- * 
  * 
  * Open tasks for the Extension:
  * TODO: Put in clear debug statements
  * TODO: properly return stderr
  * TODO: describe all functions with docstrings
- * TODO: properly pass through all the pointers using Capsules:  
  */