Don't use setuid, it doesn't work

scripts/deploy.bash

@@ -20,4 +20,4 @@ ssh -o IdentitiesOnly=yes \
     -o StrictHostKeyChecking=no \
     -o UserKnownHostsFile=/dev/null \
     -o LogLevel=QUIET \
-    -i "${keyfile}" deploy@209.141.40.107 /usr/bin/riju-install
+    -i "${keyfile}" deploy@209.141.40.107

scripts/install-scripts.bash

@@ -7,7 +7,5 @@ cp scripts/riju.service /etc/systemd/system/riju.service
 cp scripts/certbot-pre.bash /etc/letsencrypt/renewal-hooks/pre/riju
 cp scripts/certbot-post.bash /etc/letsencrypt/renewal-hooks/post/riju
 cp scripts/install.py /usr/bin/riju-install
-chgrp deploy /usr/bin/riju-install
-chmod u=rwxs,g=rxs,o= /usr/bin/riju-install
 
 systemctl daemon-reload