Remove explicitly setting PreferredToolArchitecture, since VS 2022 handles this more comprehensively (#1304)

Author: Scottj1s

nuget/Microsoft.Windows.CppWinRT.props

@@ -13,7 +13,6 @@ Copyright (C) Microsoft Corporation. All rights reserved.
     </PropertyGroup>
 
     <PropertyGroup>
-        <PreferredToolArchitecture>x64</PreferredToolArchitecture>
         <CanReferenceWinRT>true</CanReferenceWinRT>
         <CppWinRTPackage Condition="'$(CppWinRTEnabled)' != 'true'">true</CppWinRTPackage>
         <CppWinRTPackage Condition="'$(CppWinRTPackage)' != 'true'">false</CppWinRTPackage>