remove auto gen comment

Author: wholmgren

docs/sphinx/source/index.rst

@@ -1,8 +1,3 @@
-.. PVLIB_Python documentation master file, created by
-   sphinx-quickstart on Fri Nov  7 15:56:33 2014.
-   You can adapt this file completely to your liking, but it should at least
-   contain the root `toctree` directive.
-
 Welcome to pvlib-python's documentation!
 ========================================