Remove Google Translate from Opera Browser
To remove Google Translate extension from the Opera browser:
1. Open Opera. Right-click on the Google Translate button on the Opera toolbar, then select "Manage extensions".
2. Or select the menu item Tools > Extensions > Manage Extensions (Ctrl+Shift+E)
3. Locate Google Translate extension.
4. Click the "Remove extension" (X) icon to completely uninstall Google Translate.
You can also temporarily disable an extension by clicking on "Disable" button.