Remove unneeded print with Python 2 syntax

Fixes error with Python 3.

docs/source/conf.py

@@ -18,7 +18,6 @@ import os
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
-print os.path.abspath(".")
 sys.path.insert(0, os.path.abspath('../../'))
 
 # -- General configuration ------------------------------------------------