Revert "new_release: Workaround race condition in wesnothd SIGHUP handler"

This reverts commit 62eb55a5a7, since it
was superseded by a real fix in 6629fdf64e.

utils/mp-server/new_release

@@ -44,5 +44,4 @@ $echo sed -i -e "/motd=/s/$PREV_VERSION/$NEW_VERSION/g" $DEV_SERVER_CONFIG
 [ $PREV = yes ] && $echo sed -i -e "s,#\({./$DEV_VERSION-prev-redirect.cfg}\),\1," $DEV_SERVER_CONFIG
 # reload the config
 $echo killall -HUP wesnothd-$DEV_VERSION
-$echo sleep 1
 $echo $HOME/bin/send_server_message $DEV_VERSION "$SERVER_MESSAGE"