File sphinx-intersphinx.patch of Package translate-toolkit

Description: Stop sphinx trying to download from network at build time
  Sphinx tries to download catalogues for intersphinx links -- suppress that
  here by removing the intersphinx extension.
Author: Stuart Prescott <stuart@debian.org>
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -37,7 +37,6 @@
     'sphinx.ext.autodoc',
     'sphinx.ext.coverage',
     'sphinx.ext.extlinks',
-    'sphinx.ext.intersphinx',
     'sphinx.ext.todo',
 ]