不要な変数を削除

mucho613 · mucho613 · commit 584794581f4d · 2025-08-30T15:08:39.000+09:00
diff --git a/_posts/2025-08-28-keynote1.md b/_posts/2025-08-28-keynote1.md
@@ -2,7 +2,6 @@
 layout: post
 title: 基調講演
 date: 2025-08-28T00:00:00 UTC+09:00
-thumbnail: /img/sessions/profile/miyajima-kirie.webp
 permalink: /sessions/keynote1/
 ---
 
diff --git a/_posts/2025-08-28-keynote2.md b/_posts/2025-08-28-keynote2.md
@@ -2,7 +2,6 @@
 layout: post
 title: 招待講演
 date: 2025-08-28T00:00:00 UTC+09:00
-thumbnail: /img/sessions/profile/miyajima-kirie.webp
 permalink: /sessions/keynote2/
 ---
 
