Magento2 /bin/sh: /home/appleserver2/public_html/magento2/var/log/update.cron.log: No such file or directory

i have delete magento2 installation by directly deleting the directory and database. however i am getting email in every second and the mail content is as below

/bin/sh: /home/appleserver2/public_html/magento2/var/log/update.cron.log: No such file or directory

how can i stop these emails or how can i delete these cron jobs