sudo rm /usr/local/mysql
sudo rm -rf /usr/local/mysql*
sudo rm -rf /Library/StartupItems/MySQLCOM
sudo rm -rf /Library/PreferencePanes/My*
vim /etc/hostconfig (and removed the line MYSQLCOM=-YES-)
rm -rf ~/Library/PreferencePanes/My*
sudo rm -rf /Library/Receipts/mysql*
sudo rm -rf /Library/Receipts/MySQL*
sudo rm -rf /var/db/receipts/com.mysql.*

2016-12-03T05:27:15.648601Z 1 [Note] A temporary password is generated for <a href="mailto:root@localhost">root@localhost</a>:
pju%C!a?t4ek
If you lose this password, please consult the section How to Reset the Root Password in the MySQL reference manual.
You must reset your password using ALTER USER statement before executing this statement.