doc: clean PDF config

Some font options do not look necessary.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: John McNamara <john.mcnamara@intel.com>

diff --git a/doc/guides/conf.py b/doc/guides/conf.py
index 94b97dc..e2b52e2 100644 (file)
--- a/doc/guides/conf.py
+++ b/doc/guides/conf.py
@@ -62,11 +62,7 @@ latex_documents = [
 
 # Latex directives to be included directly in the latex/pdf docs.
 custom_latex_preamble = r"""
-\usepackage[utf8]{inputenc}
-\usepackage[T1]{fontenc}
 \usepackage{textalpha}
-\usepackage{helvet}
-\renewcommand{\familydefault}{\sfdefault}
 \RecustomVerbatimEnvironment{Verbatim}{Verbatim}{xleftmargin=5mm}
 \usepackage{etoolbox}
 \robustify\(