adding "Remove" and "Delete" text to delete button

- also removed some unused assets

Change-Id: Iad42afd2f144de92d80fb89d892ab42b32811b69
diff --git a/res/layout-port/launcher.xml b/res/layout-port/launcher.xml
index c50dbca..b7c61d8 100644
--- a/res/layout-port/launcher.xml
+++ b/res/layout-port/launcher.xml
@@ -79,7 +79,7 @@
         android:layout_gravity="bottom|center_horizontal"
 
         android:scaleType="center"
-        android:src="@drawable/delete_zone_selector"
+        android:drawableLeft="@drawable/delete_zone_selector"
         android:visibility="invisible"
         launcher:direction="horizontal"
         />