remove identity file usage

deploy_to_hetzner.sh

@@ -9,7 +9,7 @@ LOCAL_DIR="$(dirname \"$0\")/src"
 
 # === UPLOAD ===
 echo "Uploading website files to $USER@$SERVER:$REMOTE_DIR ..."
-sftp -i ~/.ssh/id_ed25519 -oBatchMode=yes -b - $USER@$SERVER <<EOF
+sftp $USER@$SERVER <<EOF
 cd $REMOTE_DIR
 put -r $LOCAL_DIR/index.html
 put -r $LOCAL_DIR/impressum.html