Remove unused gravity customization

import android.compat.annotation.UnsupportedAppUsage;

import android.content.Context;

import android.content.res.Resources;

import android.content.res.TypedArray;

import android.graphics.Canvas;

import android.graphics.Outline;

import android.graphics.Rect;

public class NotificationHeaderView extends ViewGroup {

    private final int mChildMinWidth;

    private final int mContentEndMargin;

    private final int mGravity;

    private View mAppName;

    private View mHeaderText;

    private View mSecondaryHeaderText;

    private boolean mEntireHeaderClickable;

    private boolean mExpandOnlyOnButton;

    private boolean mAcceptAllTouches;

    private int mTotalWidth;

    ViewOutlineProvider mProvider = new ViewOutlineProvider() {

        @Override

        mChildMinWidth = res.getDimensionPixelSize(R.dimen.notification_header_shrink_min_width);

        mContentEndMargin = res.getDimensionPixelSize(R.dimen.notification_content_margin_end);

        mEntireHeaderClickable = res.getBoolean(R.bool.config_notificationHeaderClickableForExpand);

        int[] attrIds = {android.R.attr.gravity};

        TypedArray ta = context.obtainStyledAttributes(attrs, attrIds, defStyleAttr, defStyleRes);

        mGravity = ta.getInt(0, 0);

        ta.recycle();

    }

    @Override

            shrinkViewForOverflow(wrapContentHeightSpec, overFlow, mSecondaryHeaderText,

                    0);

        }

        totalWidth += getPaddingEnd();

        mTotalWidth = Math.min(totalWidth, givenWidth);

        setMeasuredDimension(givenWidth, givenHeight);

    }

    protected void onLayout(boolean changed, int l, int t, int r, int b) {

        int left = getPaddingStart();

        int end = getMeasuredWidth();

        final boolean centerAligned = (mGravity & Gravity.CENTER_HORIZONTAL) != 0;

        if (centerAligned) {

            left += getMeasuredWidth() / 2 - mTotalWidth / 2;

        }

        int childCount = getChildCount();

        int ownHeight = getMeasuredHeight() - getPaddingTop() - getPaddingBottom();

        for (int i = 0; i < childCount; i++) {