Remove unused private assets from Android 1.0.

core/res/res/drawable/spinnerbox_arrows.xml

@@ -1,27 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-/* //device/apps/common/res/drawable/spinnerbox_arrows.xml
-**
-** Copyright 2007, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License"); 
-** you may not use this file except in compliance with the License. 
-** You may obtain a copy of the License at 
-**
-**     http://www.apache.org/licenses/LICENSE-2.0 
-**
-** Unless required by applicable law or agreed to in writing, software 
-** distributed under the License is distributed on an "AS IS" BASIS, 
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
-** See the License for the specific language governing permissions and 
-** limitations under the License.
-*/
--->
-
-<selector xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:state_single="true" android:drawable="@drawable/spinnerbox_arrow_single" />
-    <item android:state_first="true" android:drawable="@drawable/spinnerbox_arrow_first" />
-    <item android:state_last="true" android:drawable="@drawable/spinnerbox_arrow_last" />
-    <item android:state_middle="true" android:drawable="@drawable/spinnerbox_arrow_middle" />
-    <item android:state_pressed="true" android:drawable="@drawable/spinnerbox_arrow_single" />
-</selector>