How to turn off keyboard icon at TimePicker?

I have a timepicker, everything works well but the problem is that I can't make it look like designer wants. For now it looks like this:

I need to hide this keyboard icon under the buttons. How can I do it? It's just a prototype, so here's only its xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical"
  android:tag="ww">

  <TextView
    android:id="@+id/textView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Time"
    android:textAppearance="?android:attr/textAppearanceLarge" />

  <TimePicker
    android:id="@+id/timePicker"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:amPmBackgroundColor="#6400AA"
    android:numbersSelectorColor="#6400AA" />

  <LinearLayout
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="end"
    android:orientation="horizontal">

    <Button
      android:id="@+id/button2"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:text="Cancel"
      android:textColor="#6400AA" />

    <Button
      android:id="@+id/button1"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:text="OK"
      android:textColor="#6400AA" />

  </LinearLayout>

</LinearLayout>

As far as I can tell you cannot remove this icon, it is part of the UI on Android O.

The icon is there to make the manual editing of the time more apparent because in previous versions it was not obvious that you could click on the time and change it via keyboard