Your LICENSE file says your code is under MIT but your source files still use the autogenerated Xcode header that says "All rights reserved". Mostly just pointing it out so that all things are consistent. It could appear that your code is not actually licensed for use if one were to forget to bundle your LICENSE file (which I realize would necessarily violate the license text but such things do happen on accident).
Your LICENSE file says your code is under MIT but your source files still use the autogenerated Xcode header that says "All rights reserved". Mostly just pointing it out so that all things are consistent. It could appear that your code is not actually licensed for use if one were to forget to bundle your LICENSE file (which I realize would necessarily violate the license text but such things do happen on accident).