$OpenBSD: patch-doc_src_conf_py,v 1.2 2021/05/24 16:56:07 sthen Exp $

Prevent build from calling out to the internet.

Index: doc/src/conf.py
--- doc/src/conf.py.orig
+++ doc/src/conf.py
@@ -29,7 +29,6 @@ extensions = [
     'sphinx.ext.todo',
     'sphinx.ext.ifconfig',
     'sphinx.ext.doctest',
-    'sphinx.ext.intersphinx',
 ]
 
 # Specific extensions for Psycopg documentation.
