In order to disable Google login with OAuth, please perform the following steps:
1. Log into the Google account that you want to disconnect
2. Click on the following link:
https://security.google.com/settings/security/permissions
3. Page showing all connected apps to your account would be opened as shown in the screenshot. Click on “EmailMeForm Google Integration” App.
4. Click on the "REMOVE" button as noted in the screen shot
