[PATCH] docs/conf.py: Remove usage of distutils

[Thomas Huth <thuth@redhat.com>]

The macOS jobs in our CI recently started failing, complaining that
the distutils module is not available anymore. And indeed, according to
https://peps.python.org/pep-0632/ it's been deprecated since a while
and now likely got removed in recent Python versions.

Fortunately, we only use it for a version check via LooseVersion here
which we don't really need anymore: All distros ship newer versions of
Sphinx now (see https://repology.org/project/python:sphinx/versions -
the oldest one is 0.6.6 on CentOS 6!), so we can simply drop the version
check now.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 docs/conf.py | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/docs/conf.py b/docs/conf.py
index e84a95e71c..1b2afa241c 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -29,7 +29,6 @@
 import os
 import sys
 import sphinx
-from distutils.version import LooseVersion
 from sphinx.errors import ConfigError
 
 # The per-manual conf.py will set qemu_docdir for a single-manual build;
@@ -165,11 +164,10 @@
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
 # documentation.
-if LooseVersion(sphinx_rtd_theme.__version__) >= LooseVersion("0.4.3"):
-    html_theme_options = {
-        "style_nav_header_background": "#802400",
-        "navigation_with_keys": True,
-    }
+html_theme_options = {
+    "style_nav_header_background": "#802400",
+    "navigation_with_keys": True,
+}
 
 html_logo = os.path.join(qemu_docdir, "../ui/icons/qemu_128x128.png")
 
-- 
2.44.0