Disable a captcha robot.

If these are messages that clutter the notification bar sent from the Google app, you need to:
- open a Google Chrome page
- click on the 3 small dots at the top right and look for "settings"
- in the advanced settings, look for "site settings" and then "notifications"
- there will be 2 columns: "blocked" and "allowed", it's up to you to choose which site goes in which column

Hope this helps, see you!