MahApps.Metro DataGridColumnHeadersPresenter without right header gripper

DataGridColumnHeadersPresenter

<!-- for ne metro style -->
<Style TargetType="{x:Type DataGridColumnHeadersPresenter}">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="DataGridColumnHeadersPresenter">
                <Grid>
                    <Border IsHitTestVisible="False"
                            BorderThickness="0 0 0 3"
                            Background="Transparent"
                            BorderBrush="{DynamicResource GrayBrush5}" />
                    <ItemsPresenter />
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

<!-- for the azure style -->
<Style TargetType="{x:Type DataGridColumnHeadersPresenter}">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="DataGridColumnHeadersPresenter">
                <Grid>
                    <Border IsHitTestVisible="False"
                            Margin="0 0 0 10"
                            BorderThickness="0 0 0 3"
                            Background="Transparent"
                            BorderBrush="{DynamicResource GrayBrush5}" />
                    <ItemsPresenter />
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>