removed typedefs of CGRect and CGSize

The `typedef` of CGRect and CGSize was taking effect for my whole project and caused issues when other iOS Pods added methods/categories to CGRect.

I was able to test this on my iOS project, but you'll want to test this change on Mac.

PS. Sorry, about the multiple commits. I though I could make a solution while still using `typedef`, but I was way wrong. You can see the Files Changed for the final results.