Remove WASDK from RivePlayer MultiTargets until SkiaSharp.Views.WinUI upgrades their Microsoft.WindowsAppSDK dependency to at least 1.8

Author: Arlodotexe

components/RivePlayer/src/MultiTarget.props

@@ -4,6 +4,6 @@
       MultiTarget is a custom property that indicates which target a project is designed to be built for / run on.
       Used to create project references, generate solution files, enable/disable TargetFrameworks, and build nuget packages.
     -->
-      <MultiTarget>uwp;wasdk;wasm;</MultiTarget>
+      <MultiTarget>uwp;wasm;</MultiTarget>
   </PropertyGroup>
 </Project>