How to remove the menu from an action bar (java)

I'm new to android development and wanted to make a tabbed application, so I started with google's file form the documentation and I would like to remove the most above part of the action bar (where the logo and the app name stands). I've tried styling it like this:

<resources>
<style name="ThemeHoloWithActionBar" parent="android:Theme.Holo.Light.DarkActionBar">
    <item name="android:actionBarTabStyle">@style/ActionBarTabStyle</item>

    <item name="android:actionBarSize">50dip</item>
</style>

<style name="ActionBarTabStyle" parent="@android:style/Widget.Holo.ActionBar.TabView">
    <item name="android:minHeight">50dip</item>
</style>

hoping that it would push the size of the other bar to 0 but it didn't work.