Add method for removing all views from a superview.

[matoushybl]

This is quite useful when working with our stack and UIStackView.

extension UIView {
    @discardableResult
    public func removeSubviews() -> [UIView] {
        let subviews = self.subviews
        for subview in subviews {
            subview.removeFromSuperview()
        }

        return subviews
    }
}

[MatyasKriz]

What use is returning the removed views?