_init_posix() not ever called?

Hi I was working in the file lib-python/2.7/distutils/sysconfig_pypy.py, on the function _init_posix(). I placed print() statements in the function to indicate when this function is called. After fully building pypy the print() statements were never called. I then used grep to try to find out where this function is called in the source code. I ran this command: grep "_init_posix()" -r *. After looking at the results it looks like this function is never called by anything. Why do we have it? More importantly can we delete it? 

Thank you.