Removing separate hotseat widget, instead using a QSB acroll all UI.
The QSB is responsible for updating its UI according to various states.

Bug: 109828640
Change-Id: Ic8cbf3d404d5870de0f6b8fe25a332b8d21bae20
diff --git a/res/layout/all_apps.xml b/res/layout/all_apps.xml
index 02d793e..b1e6f2e 100644
--- a/res/layout/all_apps.xml
+++ b/res/layout/all_apps.xml
@@ -26,7 +26,9 @@
     android:focusable="false"
     android:saveEnabled="false" >
 
-    <include layout="@layout/all_apps_rv_layout" />
+    <include
+        layout="@layout/all_apps_rv_layout"
+        android:visibility="gone" />
 
     <include layout="@layout/all_apps_floating_header" />