I have already installed WordPress on Ubuntu 14.04 and it work well.
However, everytime when I log on the VPS, it will show a MOTD as below:
"These instructions are stored in /root/WORDPRESS for your review.
To finish installing Wordpress, navigate to your droplet's IP: http://xxx.xxx.xx.x. and use credentials from below.

Your /wp-admin is protected by Apache using .htaccess credentials:
.......
.......
"
I Do Not want see it any more. I check the files in /update-motd.d, there is no infomation about WordPress.
So how to disable the MOTD?