Remove unused TrackingPatternView.

/*

 * Copyright (C) 2008 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.android.systemui.statusbar.phone;

import android.content.Context;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.graphics.Canvas;

import android.graphics.Paint;

import android.util.AttributeSet;

import android.view.View;

public class TrackingPatternView extends View {

    private Bitmap mTexture;

    private Paint mPaint;

    private int mTextureWidth;

    private int mTextureHeight;

    public TrackingPatternView(Context context, AttributeSet attrs) {

        super(context, attrs);

        mTexture = BitmapFactory.decodeResource(getResources(), 

                com.android.internal.R.drawable.status_bar_background);

        mTextureWidth = mTexture.getWidth();

        mTextureHeight = mTexture.getHeight();

        mPaint = new Paint();

        mPaint.setDither(false);

    }

    @Override

    public void onDraw(Canvas canvas) {

        final Bitmap texture = mTexture;

        final Paint paint = mPaint;

        final int width = getWidth();

        final int height = getHeight();

        final int textureWidth = mTextureWidth;

        final int textureHeight = mTextureHeight;

        int x = 0;

        int y;

        while (x < width) {

            y = 0;

            while (y < height) {

                canvas.drawBitmap(texture, x, y, paint);

                y += textureHeight;

            }

            x += textureWidth;

        }

    }

}