Replace .NET Framework attributes tokens (#15781)

* Replace .NET Framework attributes tokens

* Remove tla2sharptla-netframewkattrsharpplural-md.md

* .NET Framework attributes -> .NET attributes

* Update docs/framework/wpf/advanced/attached-properties-overview.md

Co-Authored-By: Tom Dykstra <tdykstra@microsoft.com>

Author: nxtn

docs/framework/wpf/advanced/attached-properties-overview.md

@@ -117,7 +117,7 @@ The following example shows the dependency property registration (using the <xre
 
 #### Attached Property Attributes
 
-WPF defines several [!INCLUDE[TLA2#tla_netframewkattr#plural](../../../../includes/tla2sharptla-netframewkattrsharpplural-md.md)] that are intended to provide information about attached properties to reflection processes, and to typical users of reflection and property information such as designers. Because attached properties have a type of unlimited scope, designers need a way to avoid overwhelming users with a global list of all the attached properties that are defined in a particular technology implementation that uses XAML. The [!INCLUDE[TLA2#tla_netframewkattr#plural](../../../../includes/tla2sharptla-netframewkattrsharpplural-md.md)] that WPF defines for attached properties can be used to scope the situations where a given attached property should be shown in a properties window. You might consider applying these attributes for your own custom attached properties also. The purpose and syntax of the [!INCLUDE[TLA2#tla_netframewkattr#plural](../../../../includes/tla2sharptla-netframewkattrsharpplural-md.md)] is described on the appropriate reference pages:
+WPF defines several .NET attributes that are intended to provide information about attached properties to reflection processes, and to typical users of reflection and property information such as designers. Because attached properties have a type of unlimited scope, designers need a way to avoid overwhelming users with a global list of all the attached properties that are defined in a particular technology implementation that uses XAML. The .NET attributes that WPF defines for attached properties can be used to scope the situations where a given attached property should be shown in a properties window. You might consider applying these attributes for your own custom attached properties also. The purpose and syntax of the .NET attributes is described on the appropriate reference pages:
 
 - <xref:System.Windows.AttachedPropertyBrowsableAttribute>