Revert "Landing https://webrtc-codereview.appspot.com/53669004/"

talk/examples/android/res/xml/preferences.xml

 <?xml version="1.0" encoding="utf-8"?>
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
     <PreferenceCategory
         android:key="@string/pref_videosettings_key"
         android:title="@string/pref_videosettings_title">
 
         <CheckBoxPreference
             android:key="@string/pref_videocall_key"
             android:title="@string/pref_videocall_title"
             android:dialogTitle="@string/pref_videocall_dlg"
@@ skipping 64 matching lines @@
             android:defaultValue="@string/pref_startaudiobitratevalue_default"
             android:dialogTitle="@string/pref_startaudiobitratevalue_dlg" />
 
         <ListPreference
             android:key="@string/pref_audiocodec_key"
             android:title="@string/pref_audiocodec_title"
             android:defaultValue="@string/pref_audiocodec_default"
             android:dialogTitle="@string/pref_audiocodec_dlg"
             android:entries="@array/audioCodecs"
             android:entryValues="@array/audioCodecs" />
-
-        <CheckBoxPreference
-            android:key="@string/pref_noaudioprocessing_key"
-            android:title="@string/pref_noaudioprocessing_title"
-            android:dialogTitle="@string/pref_noaudioprocessing_dlg"
-            android:defaultValue="@string/pref_noaudioprocessing_default" />
     </PreferenceCategory>
 
     <PreferenceCategory
         android:key="@string/pref_miscsettings_key"
         android:title="@string/pref_miscsettings_title">
 
         <CheckBoxPreference
             android:key="@string/pref_cpu_usage_detection_key"
             android:title="@string/pref_cpu_usage_detection_title"
             android:dialogTitle="@string/pref_cpu_usage_detection_dlg"
             android:defaultValue="@string/pref_cpu_usage_detection_default" />
 
         <EditTextPreference
             android:key="@string/pref_room_server_url_key"
             android:title="@string/pref_room_server_url_title"
             android:inputType="text"
             android:defaultValue="@string/pref_room_server_url_default"
             android:dialogTitle="@string/pref_room_server_url_dlg" />
 
         <CheckBoxPreference
             android:key="@string/pref_displayhud_key"
             android:title="@string/pref_displayhud_title"
             android:dialogTitle="@string/pref_displayhud_dlg"
            android:defaultValue="@string/pref_displayhud_default" />
     </PreferenceCategory>
 
 </PreferenceScreen>