Unused icons removed.

app/src/main/res/drawable/ic_security.xml

-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (c) 2013, Redsolution LTD. All rights reserved.
-
-     This file is part of Xabber project; you can redistribute it and/or
-     modify it under the terms of the GNU General Public License, Version 3.
-
-     Xabber is distributed in the hope that it will be useful, but
-     WITHOUT ANY WARRANTY; without even the implied warranty of
-     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-     See the GNU General Public License for more details.
-
-     You should have received a copy of the GNU General Public License,
-     along with this program. If not, see http://www.gnu.org/licenses/.
--->
-<level-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="@drawable/ic_security_plain_18dp" android:minLevel="0" android:maxLevel="0" />
-    <item android:drawable="@drawable/ic_security_encrypted_18dp" android:minLevel="1" android:maxLevel="1" />
-    <item android:drawable="@drawable/ic_security_verified_18dp" android:minLevel="2" android:maxLevel="2" />
-    <item android:drawable="@drawable/ic_security_finished_18dp" android:minLevel="3" android:maxLevel="3" />
-</level-list>
\ No newline at end of file

app/src/main/res/menu/contact_list.xml

@@ -46,7 +46,6 @@
         android:title="@string/preference_editor"
         app:showAsAction="never"
         android:orderInCategory="160"
-        android:icon="@drawable/ic_settings_white_24dp"
         />
 
     <item android:id="@+id/action_exit"