[fix] "[fix] uwsgi: don't set static-expires": Clean comment that forgot to cleen

I noticed this when I tracking the difference between my current `settings.yml` and the `settings.yml`.

dockerfiles/uwsgi.ini

@@ -48,6 +48,5 @@ die-on-term
 
 # uwsgi serves the static files
 static-map = /static=/usr/local/searxng/searx/static
-# expires set to one day
 static-gzip-all = True
 offload-threads = %k