[Sound panel] Update Ui layout to match with mertial next

please check bug for before/after screenshot.

Bug: 191317779
Test: verified on device
Change-Id: Ia570dde71ce9f18376eaba48102cecde6adb85bb

src/com/android/settings/panel/PanelFragment.java

@@ -100,10 +100,8 @@ public class PanelFragment extends Fragment {
     private TextView mHeaderTitle;
     private TextView mHeaderSubtitle;
     private int mMaxHeight;
-    private View mFooterDivider;
     private boolean mPanelCreating;
     private ProgressBar mProgressBar;
-    private View mHeaderDivider;
 
     private final Map<Uri, LiveData<Slice>> mSliceLiveData = new LinkedHashMap<>();
 
@@ -210,9 +208,7 @@ public class PanelFragment extends Fragment {
         mHeaderLayout = mLayoutView.findViewById(R.id.header_layout);
         mHeaderTitle = mLayoutView.findViewById(R.id.header_title);
         mHeaderSubtitle = mLayoutView.findViewById(R.id.header_subtitle);
-        mFooterDivider = mLayoutView.findViewById(R.id.footer_divider);
         mProgressBar = mLayoutView.findViewById(R.id.progress_bar);
-        mHeaderDivider = mLayoutView.findViewById(R.id.header_divider);
 
         // Make the panel layout gone here, to avoid janky animation when updating from old panel.
         // We will make it visible once the panel is ready to load.
@@ -257,8 +253,6 @@ public class PanelFragment extends Fragment {
             enableTitle(title);
         }
 
-        mFooterDivider.setVisibility(View.GONE);
-
         mSeeMoreButton.setOnClickListener(getSeeMoreListener());
         mDoneButton.setOnClickListener(getCloseListener());
 
@@ -324,10 +318,8 @@ public class PanelFragment extends Fragment {
     private void updateProgressBar() {
         if (mPanel.isProgressBarVisible()) {
             mProgressBar.setVisibility(View.VISIBLE);
-            mHeaderDivider.setVisibility(View.GONE);
         } else {
             mProgressBar.setVisibility(View.GONE);
-            mHeaderDivider.setVisibility(View.VISIBLE);
         }
     }