[LyX/master] Fix fonts of ja/Modules/LilyPond_Book.lyx

[Koji Yokota]

commit 9ae284ae58e11b279f7926b9fb0865347c7db14e
Author: Koji Yokota <yokota at lyx.org>
Date:   Tue Aug 4 11:17:45 2026 +0900

    Fix fonts of ja/Modules/LilyPond_Book.lyx
---
 lib/examples/ja/Modules/LilyPond_Book.lyx | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/lib/examples/ja/Modules/LilyPond_Book.lyx b/lib/examples/ja/Modules/LilyPond_Book.lyx
index 388eafe2a3..673a895ad2 100644
--- a/lib/examples/ja/Modules/LilyPond_Book.lyx
+++ b/lib/examples/ja/Modules/LilyPond_Book.lyx
@@ -24,13 +24,8 @@ lilypond
 \font_roman_osf false
 \font_sans_osf false
 \font_typewriter_osf false
-\font_roman_special "japanese" "YuMincho"
-\font_sans_special "japanese" "Yu Gothic"
-\font_typewriter_special "japanese" "MS Gothic"
 \font_sf_scale 100 100
 \font_tt_scale 100 100
-\font_sans_special_scale "japanese" "100"
-\font_typewriter_special_scale "japanese" "100"
 \use_microtype false
 \use_dash_ligatures false
 \graphics default