MonkeyedTextInputEditText: au revoir

Remember to go back to using com.google.android.material when
1.3.0-alpha03 comes out.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

ui/src/main/java/com/wireguard/android/widget/MonkeyedTextInputEditText.kt

@@ -1,36 +0,0 @@
-/*
- * Copyright © 2020 WireGuard LLC. All Rights Reserved.
- * SPDX-License-Identifier: Apache-2.0
- */
-
-package com.wireguard.android.widget
-
-import android.content.Context
-import android.text.Editable
-import android.text.SpannableStringBuilder
-import android.util.AttributeSet
-import com.google.android.material.R
-import com.google.android.material.textfield.TextInputEditText
-import com.google.android.material.textfield.TextInputLayout
-
-/* Is this no longer necessary?
- * https://github.com/material-components/material-components-android/pull/1163 was merged via
- * https://github.com/material-components/material-components-android/commit/22973ff10305397bfc72fed41684175fee8aeefb .
- * It would seem like we can now set expandedHintEnabled=false
- * TODO: when a new material-components library comes out, switch to expandedHintEnabled=false.
- */
-class MonkeyedTextInputEditText @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = R.attr.editTextStyle) : TextInputEditText(context, attrs, defStyleAttr) {
-    @Override
-    override fun getText(): Editable? {
-        val text = super.getText()
-        if (!text.isNullOrEmpty())
-            return text
-        /* We want this expression in TextInputLayout.java to be true if there's a hint set:
-         *        final boolean hasText = editText != null && !TextUtils.isEmpty(editText.getText());
-         * But for everyone else it should return the real value, so we check the caller.
-         */
-        if (!hint.isNullOrEmpty() && Thread.currentThread().stackTrace[3].className == TextInputLayout::class.qualifiedName)
-            return SpannableStringBuilder(hint)
-        return text
-    }
-}