Update FSharp.Test.Utilities.fsproj

Author: T-Gro

tests/FSharp.Test.Utilities/FSharp.Test.Utilities.fsproj

@@ -92,8 +92,7 @@
  <NoWarn>$(NoWarn);NU1510</NoWarn> <!-- NU1510: Project is explicitly referencing the runtime assembly 'System.Collections.Immutable', however, if we remove it, it tries to find it on the wrong path. Also, local NoWarn does not help - This is just me trying to enforce it -->
 </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="System.Collections.Immutable" Version="$(SystemCollectionsImmutableVersion)" GeneratePathProperty="true"  />  
-
+    <PackageReference Include="System.Collections.Immutable" Version="$(SystemCollectionsImmutableVersion)" GeneratePathProperty="true"  />
     <PackageReference Include="Microsoft.Net.Compilers" Version="$(MicrosoftNetCompilersVersion)" />
     <PackageReference Include="Microsoft.DiaSymReader.PortablePdb" Version="$(MicrosoftDiaSymReaderPortablePdbVersion)">
       <PrivateAssets>all</PrivateAssets>
@@ -102,7 +101,6 @@
     <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.Common" Version="$(MicrosoftCodeAnalysisVersion)" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="$(MicrosoftCodeAnalysisCSharpVersion)" />
     <PackageReference Include="Microsoft.CodeAnalysis.Test.Resources.Proprietary" Version="$(MicrosoftCodeAnalysisTestResourcesProprietaryVersion)" />
-    <PackageReference Include="Microsoft.NETCore.App.Ref" Version="6.0.0" IncludeAssets="none" PrivateAssets="all" GeneratePathProperty="true" />
     <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.11.2" />
     <PackageReference Include="Newtonsoft.Json" Version="$(NewtonsoftJsonVersion)" />
   </ItemGroup>