From 534583cfa65c00143fa221533c29b2e0b2f54e05 Mon Sep 17 00:00:00 2001
From: Takeshi KOMIYA <i.tkomiya@gmail.com>
Date: Fri, 7 Dec 2018 01:04:37 +0900
Subject: [PATCH] Skip meaningless publisher.set_components() call

"parser" component is already passed on initialization.  So it is
not needed to call `set_components()` method.
---
 sphinx/io.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sphinx/io.py b/sphinx/io.py
index 89d2bc209..6e0abfabe 100644
--- a/sphinx/io.py
+++ b/sphinx/io.py
@@ -307,7 +307,6 @@ def read_doc(app, env, filename):
                     writer=SphinxDummyWriter(),
                     source_class=SphinxDummySourceClass,
                     destination=NullOutput())
-    pub.set_components(None, 'restructuredtext', None)
     pub.process_programmatic_settings(None, env.settings, None)
     pub.set_source(source, filename)
     pub.publish()