Define documentation dependencies

Read the Docs stopped installing spinx-rtd-theme by default, which
broke documentation builds. This commit fixes that by pinning the
required dependencies.

See: https://blog.readthedocs.com/defaulting-latest-build-tools/

1 files changed, 0 insertions, 4 deletions

diff --git a/doc/source/_ext/elisp.py b/doc/source/_ext/elisp.py
index a4da67e..ab82105 100644
--- a/doc/source/_ext/elisp.py
+++ b/doc/source/_ext/elisp.py
@@ -2,15 +2,11 @@ import re
 from os import path
 import json
 
-from docutils import nodes
-from docutils.parsers.rst import Directive
-
 from sphinx import addnodes
 from sphinx.domains import Domain, ObjType, Index
 from sphinx.domains.std import StandardDomain
 from sphinx.directives import ObjectDescription
 from sphinx.roles import XRefRole
-from sphinx.util.docfields import Field
 from sphinx.util.nodes import make_refnode