Delete fragment_chat_list.xml

app/src/main/res/layout/fragment_chat_list.xml

-<?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
-
-    <android.support.v7.widget.RecyclerView
-        android:id="@+id/recycler_view"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:clipToPadding="false"
-        android:gravity="center_horizontal"
-        android:paddingTop="84dp" />
-
-    <com.arlib.floatingsearchview.FloatingSearchView
-        android:id="@+id/floating_search_view"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        app:floatingSearch_close_search_on_keyboard_dismiss="true"
-        app:floatingSearch_dimBackground="false"
-        app:floatingSearch_dismissOnOutsideTouch="true"
-        app:floatingSearch_leftActionMode="showSearch"
-        app:floatingSearch_searchBarMarginLeft="4dp"
-        app:floatingSearch_searchBarMarginRight="4dp"
-        app:floatingSearch_searchBarMarginTop="28dp" />
-
-</RelativeLayout>
\ No newline at end of file