Installing Newton RC on Ubuntu 16.04,
apt-get install mariadb-server python-pymysql
no longer results in a prompt to set the root password,
bringing it into line with other distributions.
The install guide contains a reference to the previous behaviour
"Choose a suitable password for the database root account."
which is no longer necessary, and as such this patch removes it.
Change-Id: I46e8e02d7de00b08dff4648fe51a1da10bd053b9
c917116457