remove boilerplate code

deltachat-ios/Helper/UIView+Extension.swift

@@ -1,11 +1,3 @@
-//
-//  File.swift
-//  deltachat-ios
-//
-//  Created by Macci on 05.08.19.
-//  Copyright © 2019 Jonas Reinsch. All rights reserved.
-//
-
 import UIKit
 
 extension UIView {