Remove "Edit on Github" link: https://github.com/sphinx-doc/sphinx/issues/2386

docs/_static/custom.css

@@ -0,0 +1,4 @@
+/* Hide "On GitHub" section from versions menu */
+li.wy-breadcrumbs-aside > a.fa {
+    display: none;
+}

docs/conf.py

@@ -100,6 +100,10 @@ html_theme = 'sphinx_rtd_theme'
 # so a file named "default.css" will overwrite the builtin "default.css".
 html_static_path = ['_static']
 
+html_css_files = [
+    'custom.css',
+]
+
 # Custom sidebar templates, must be a dictionary that maps document names
 # to template names.
 #