OmniGears: rework header image pref

diff between browse only and pick for static mode
depends on OmniStyle changes to header activities

Change-Id: If3761336567124ee91fe80af351a69204b27d753
diff --git a/res/xml/style_settings.xml b/res/xml/style_settings.xml
index 411e920..63723e9 100644
--- a/res/xml/style_settings.xml
+++ b/res/xml/style_settings.xml
@@ -99,13 +99,8 @@
             <PreferenceScreen
                 android:key="custom_header_browse"
                 android:title="@string/custom_header_browse_title"
-                android:summary="@string/custom_header_browse_summary"
                 android:dependency="status_bar_custom_header"
-                android:persistent="false" >
-                <intent android:action="android.intent.action.MAIN"
-                        android:targetPackage="org.omnirom.omnistyle"
-                        android:targetClass="org.omnirom.omnistyle.BrowseHeaderActivity" />
-            </PreferenceScreen>
+                android:persistent="false" />
 
             <org.omnirom.omnigears.preference.SeekBarPreference
                 android:key="status_bar_custom_header_shadow"