iOS 9 iPad Keyboard get rid of "undo view"

For Swift 2.0, You can place this code in viewDidLoad and it will work like a charm.

if #available(iOS 9.0, *) {
    let item = yourTextView.inputAssistantItem
    item.leadingBarButtonGroups = []
    item.trailingBarButtonGroups = []
} else {
    // Fallback on earlier versions
}

In Swift 3.0 and 4.0

youtTextField.inputAssistantItem.leadingBarButtonGroups.removeAll()
yourTextField.inputAssistantItem.trailingBarButtonGroups.removeAll()

However the best way to use this is to subclass a UITextfield and use the above code in the init() phase. Or to create an extension Instead of using it in the viewDidLoad for each and every textField.

This is code in Objective-C:

if (@available(iOS 9.0, *)) {
    UITextInputAssistantItem* item = yourTextView.inputAssistantItem;
    item.leadingBarButtonGroups = @[];
    item.trailingBarButtonGroups = @[];
}