当TabControl.TabItem为固定值时，如何去掉Header和ContentPresenter之间的行？

<Style TargetType="TabControl">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="TabControl">
                <Grid>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition Height="*"/>
                    </Grid.RowDefinitions>
                    <TabPanel Grid.Row="0" Panel.ZIndex="1" Background="Transparent" IsItemsHost="True"/>
                    <Border Grid.Row="1" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}">
                        <ContentPresenter x:Name="PART_SelectedContentHost" ContentSource="SelectedContent"/>
                    </Border>
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>