How do I hide or remove the address bar from the polyline in google maps on Xcode

I am new to programming and I have been working on an app that relies heavily on google maps, similar to uber.

The problem I am having is that at the point where the user identified their pick up and drop of locations, this generates a polyline between both locations however, there is a white rectangle that appears on both location points with the location address’ in it. I am trying to remove it or atleast hide this feature as I do not like the way it looks but I am having trouble learning what the element is called, meaning I am unable to modify this, can anyone help?

Even if it’s to just let me know what exactly that element is called, that would be great!!