session-android/res/layout/recipient_preference_photo_rail.xml

<?xml version="1.0" encoding="utf-8"?>
<merge xmlns:android="http://schemas.android.com/apk/res/android">

    <android.support.v7.widget.RecyclerView
            android:id="@+id/photo_list"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:paddingStart="16dp"
            android:clipToPadding="false"
            android:nestedScrollingEnabled="false"
            android:scrollbars="none"/>
</merge>