more useful contact select headers

Closes #4608
// FREEBIE

res/drawable/badge_drawable.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<bitmap android:src="@drawable/ic_badge_24dp"
-        xmlns:android="http://schemas.android.com/apk/res/android"
-        android:gravity="bottom|right"
-        android:tileMode="disabled" />

res/layout/contact_selection_list_item.xml

@@ -18,7 +18,6 @@
             android:layout_height="40dp"
             android:foreground="@drawable/contact_photo_background"
             android:cropToPadding="true"
-            app:showBadge="true"
             tools:src="@color/md_material_blue_600"
             android:layout_marginRight="10dp"
             android:contentDescription="@string/SingleContactSelectionActivity_contact_photo" />

res/values/attrs.xml

@@ -132,7 +132,6 @@
 
     <declare-styleable name="AvatarImageView">
         <attr name="inverted" format="boolean" />
-        <attr name="showBadge" format="boolean" />
     </declare-styleable>
 
     <declare-styleable name="ThumbnailView">