deleted file mode 100644
--- a/mobile/android/app/src/main/res/values-v13/search_styles.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<!-- 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>
-
-    <!-- Base application theme. -->
-    <style name="AppTheme" parent="@android:style/Theme.Holo.Light.NoActionBar">
-        <item name="android:windowBackground">@color/toolbar_grey</item>
-        <item name="android:colorBackground">@color/toolbar_grey</item>
-    </style>
-
-    <style name="SettingsTheme" parent="@android:style/Theme.Holo.Light"/>
-
-</resources>

deleted file mode 100644
--- a/mobile/android/app/src/main/res/values-v16/search_styles.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<!-- 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>
-
-    <style name="TextAppearance.EmptyView.Title" parent="@android:style/TextAppearance.Small">
-        <item name="android:textColor">@color/text_and_tabs_tray_grey</item>
-        <item name="android:textSize">20sp</item>
-        <item name="android:fontFamily">sans-serif-light</item>
-    </style>
-
-    <style name="TextAppearance.EmptyView.Message" parent="@android:style/TextAppearance.Small">
-        <item name="android:textColor">@color/placeholder_grey</item>
-        <item name="android:textSize">16sp</item>
-        <item name="android:lineSpacingExtra">4sp</item>
-    </style>
-
-</resources>

--- a/mobile/android/app/src/photon/res/values-v11/styles.xml
+++ b/mobile/android/app/src/photon/res/values-v11/styles.xml
@@ -40,28 +40,16 @@
         <item name="android:paddingRight">7dip</item>
         <item name="android:checkMark">?android:attr/listChoiceIndicatorMultiple</item>
         <item name="android:ellipsize">marquee</item>
     </style>
 
     <!-- ActionBar -->
     <style name="ActionBar" parent="android:style/Widget.Holo.ActionBar" />
 
-    <!-- TabsLayout ActionBar -->
-    <style name="ActionBar.TabsLayout">
-        <item name="android:visibility">gone</item>
-    </style>
-
-    <!-- DropDown List View -->
-    <style name="DropDownListView" parent="@android:style/Widget.Holo.ListView.DropDown">
-        <item name="android:listSelector">@drawable/action_bar_button</item>
-        <item name="android:divider">@color/toolbar_divider_grey</item>
-        <item name="android:dividerHeight">@dimen/page_row_divider_height</item>
-    </style>
-
     <!-- Spinner DropDown Item -->
     <style name="Widget.DropDownItem.Spinner" parent="@android:style/Widget.Holo.Light.DropDownItem.Spinner">
         <item name="android:textColor">#FF000000</item>
     </style>
 
     <style name="Widget.Spinner" parent="android:style/Widget.Holo.Light.Spinner">
         <item name="android:minWidth">@dimen/doorhanger_input_width</item>
     </style>

--- a/mobile/android/app/src/photon/res/values/styles.xml
+++ b/mobile/android/app/src/photon/res/values/styles.xml
@@ -205,22 +205,16 @@
 
     <style name="Widget.BookmarksListView" parent="Widget.HomeListView"/>
 
     <style name="Widget.TopSitesThumbnailView">
       <item name="android:padding">0dip</item>
       <item name="android:scaleType">centerCrop</item>
     </style>
 
-    <style name="Widget.TopSitesGridItemPin">
-      <item name="android:minWidth">30dip</item>
-      <item name="android:minHeight">30dip</item>
-      <item name="android:padding">0dip</item>
-    </style>
-
     <style name="Widget.TopSitesGridItemTitle">
       <item name="android:textColor">@color/top_sites_grid_item_title</item>
       <item name="android:textSize">12sp</item>
       <item name="android:paddingTop">5dip</item>
       <item name="android:gravity">left|start</item>
     </style>
 
     <style name="Widget.HomeListView" parent="Widget.ListView">

--- a/mobile/android/base/java/org/mozilla/gecko/util/UnusedResourcesUtil.java
+++ b/mobile/android/base/java/org/mozilla/gecko/util/UnusedResourcesUtil.java
@@ -96,9 +96,13 @@ final class UnusedResourcesUtil {
     // not needed while Activity Stream is part of the HomePager
     public static final int[] TEMPORARY_UNUSED_ACTIVITY_STREAM = {
             R.string.activity_stream_topsites
     };
 
     public static final int[] USED_IN_PAGE_ACTION = {
             R.drawable.add_to_homescreen
     };
+
+    public static final int[] USED_IN_LEANPLUM_EXPANDABLE_LIST_ACTIVITY = {
+            R.style.Widget_ExpandableListView,
+    };
 }