Removed the default span styling from the template (#28818)

Author: kubaflo

src/Controls/samples/Controls.Sample.Embedding/Resources/Styles/Styles.xaml

@@ -173,10 +173,6 @@
         </Setter>
     </Style>
 
-    <Style TargetType="Span">
-        <Setter Property="TextColor" Value="{AppThemeBinding Light={StaticResource Black}, Dark={StaticResource White}}" />
-    </Style>
-
     <Style TargetType="Label" x:Key="Headline">
         <Setter Property="TextColor" Value="{AppThemeBinding Light={StaticResource MidnightBlue}, Dark={StaticResource White}}" />
         <Setter Property="FontSize" Value="32" />

src/Templates/src/templates/maui-mobile/Resources/Styles/Styles.xaml

@@ -200,10 +200,6 @@
         </Setter>
     </Style>
 
-    <Style TargetType="Span">
-        <Setter Property="TextColor" Value="{AppThemeBinding Light={StaticResource Black}, Dark={StaticResource White}}" />
-    </Style>
-
     <Style TargetType="Label" x:Key="Headline">
         <Setter Property="TextColor" Value="{AppThemeBinding Light={StaticResource MidnightBlue}, Dark={StaticResource White}}" />
         <Setter Property="FontSize" Value="32" />

src/Templates/src/templates/maui-multiproject/MauiApp.1/Resources/Styles/Styles.xaml

@@ -173,10 +173,6 @@
         </Setter>
     </Style>
 
-    <Style TargetType="Span">
-        <Setter Property="TextColor" Value="{AppThemeBinding Light={StaticResource Black}, Dark={StaticResource White}}" />
-    </Style>
-
     <Style TargetType="Label" x:Key="Headline">
         <Setter Property="TextColor" Value="{AppThemeBinding Light={StaticResource MidnightBlue}, Dark={StaticResource White}}" />
         <Setter Property="FontSize" Value="32" />