Bug 1159978 - Strip out old StartPane activity. r=liuche

mobile/android/base/AndroidManifest.xml.in

@@ -289,10 +289,6 @@
         </activity>
 #endif
 
-        <activity android:name="org.mozilla.gecko.StartPane"
-                  android:theme="@style/GeckoStartPane"
-                  android:excludeFromRecents="true"/>
-
         <activity android:name="org.mozilla.gecko.webapp.Dispatcher"
             android:noHistory="true" >
             <intent-filter>

mobile/android/base/resources/values-large-v11/themes.xml

@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- This Source Code Form is subject to the terms of the Mozilla Public
-   - License, v. 2.0. If a copy of the MPL was not distributed with this
-   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
-
-<resources xmlns:android="http://schemas.android.com/apk/res/android">
-
-    <style name="GeckoStartPane" parent="Gecko.Dialog"/>
-    
-</resources>

mobile/android/base/resources/values/themes.xml

@@ -104,8 +104,6 @@
         <item name="floatingHintEditTextStyle">@style/FloatingHintEditText</item>
     </style>
 
-    <style name="GeckoStartPane" parent="GeckoBase"/>
-
     <!-- Make an activity appear like an overlay. -->
     <style name="OverlayActivity" parent="Gecko">
         <item name="android:windowBackground">@android:color/transparent</item>