Revert "MaterialDesignCheckBox default VerticalContentAlignment"

This reverts commit 7c7020d.

Author: bebenins

MaterialDesignThemes.Wpf/Themes/MaterialDesignTheme.CheckBox.xaml

@@ -47,7 +47,6 @@
     <Style x:Key="MaterialDesignCheckBox" TargetType="{x:Type CheckBox}">
         <Setter Property="FocusVisualStyle" Value="{StaticResource FocusVisual}"/>
         <Setter Property="BorderThickness" Value="1"/>
-        <Setter Property="VerticalContentAlignment" Value="Center"/>
         <Setter Property="Background" Value="{DynamicResource PrimaryHueMidBrush}"/>
         <Setter Property="BorderBrush" Value="{DynamicResource PrimaryHueMidBrush}"/>
         <Setter Property="Foreground" Value="{Binding RelativeSource={RelativeSource AncestorType={x:Type FrameworkElement}}, Path=(TextElement.Foreground)}"/>