Tires rubbing in front of wheel well?

I have a 2016 f150 XLT and recently bought 33’s that have a -25 offset. Wheels for great and ride smooth however they seem to rub slightly in the front. I looked at the cause of it and it’s rubbing on a piece of metal that sits behind the fog light. It is only held on with a couple of bolts but I want to make sure... show more I have a 2016 f150 XLT and recently bought 33’s that have a -25 offset. Wheels for great and ride smooth however they seem to rub slightly in the front. I looked at the cause of it and it’s rubbing on a piece of metal that sits behind the fog light. It is only held on with a couple of bolts but I want to make sure it doesn’t serve an important purpose. Anybody know what it is?
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