(Wallet) Remove Android unused code (#22119)

* Remove Nft details

* Remove AddAssetsActivity

* Remove PortfolioFragment

* Remove MarketFragment

* Remove AccountsFragment

* Remove TransactionsFragment

* Remove CryptoFragmentPagerAdapter

* Remove AccountDetailActivity

* Remove AssetDetailActivity

* Remove AccountDetailsWithQrActivity

* Remove WalletNftAdapter

* Remove SwapBottomSheetDialogFragment

* Remove NetworkInfoPresenter

* Remove WebUiActivityType

* Remove MarketModel

* Remove UserAssetModel

* Remove PortfolioModel

* Remove TransactionsModel

* Remove PortfolioHelper

* Remove SmoothLineChartEquallySpaced

* Clean up AssetUtils

* Clean up TokenUtils

* Clean up Utils

* Clean up WalletConstants

* Clean up Validations

* Clean up WalletUtils

* Apply code formatting

* Remove AccountPrivateKeyActivity

* Refactor and rename WalletCoinAdapter to AccountSelectorRecyclerView

* Remove unused resources

* Improve method name

android/java/res/menu/wallet_bottom_navigation_items.xml

@@ -1,20 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (c) 2023 The Brave Authors. All rights reserved.
-     This Source Code Form is subject to the terms of the Mozilla Public
-     License, v. 2.0. If a copy of the MPL was not distributed with this file,
-     You can obtain one at https://mozilla.org/MPL/2.0/.
--->
-<menu xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:id="@+id/action_wallet_portfolio"
-        android:title="@string/portfolio"
-        android:icon="@drawable/ic_portfolio" />
-    <item android:id="@+id/action_wallet_activity"
-        android:title="@string/brave_wallet_activity"
-        android:icon="@drawable/ic_activity" />
-    <item android:id="@+id/action_wallet_accounts"
-        android:title="@string/accounts"
-        android:icon="@drawable/ic_accounts" />
-    <item android:id="@+id/action_wallet_explore"
-        android:title="@string/explore"
-        android:icon="@drawable/ic_explore" />
-</menu>