Task: I am going to use a new device , remove all my calendar data by Signing out of the calendar app
Steps:
Get back to the Previous page of the Calendar app
Click on the V profile icon at the top right corner of the screen
Click on the Manage accounts setting
Click on the victorjonesdbwresearchpersona@gmail.com account
Click on the Remove account button 
Click on the Remove account button in the pop up