Remove pillow from docs requirements.txt

ato · ato · commit 3f323bb0dabc · 2025-03-21T13:23:03.000+09:00
It's triggering dependabot alerts and it appears as if we don't
actually use it.
diff --git a/docs/requirements.txt b/docs/requirements.txt
@@ -3,7 +3,6 @@ javalang==0.13.0
 beautifulsoup4==4.9.3
 sphinx==6.2.1
 sphinx-rtd-theme==1.2.2
-pillow==5.4.1
 mock==1.0.1
 commonmark==0.9.1
-recommonmark==0.5.0
+recommonmark==0.5.0
