After upgrading to 14.3 IP we started to see the "I" with the dark circle next to each option.
Component: Identity Portal
You should specify Description for each option in the Form.
You select "Description" checkbox and description to each item in the list.
When you mouse-over the "i"s you will now receive the information as tooltips for each item.
To remove the "i" you would need to create a custom CSS.
Implement CSS to hide the circle i