Remove the unused CodeDom package

Author: pzgulyas

Source/Orts.Simulation/Orts.Simulation.csproj

@@ -235,12 +235,10 @@
     <Analyzer Include="..\packages\Microsoft.CodeAnalysis.Analyzers.3.3.2\analyzers\dotnet\cs\Microsoft.CodeAnalysis.CSharp.Analyzers.dll" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-  <Import Project="..\packages\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.3.6.0\build\net472\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.targets" Condition="Exists('..\packages\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.3.6.0\build\net472\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.targets')" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>Ce projet fait référence à des packages NuGet qui sont manquants sur cet ordinateur. Utilisez l'option de restauration des packages NuGet pour les télécharger. Pour plus d'informations, consultez http://go.microsoft.com/fwlink/?LinkID=322105. Le fichier manquant est : {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('..\packages\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.3.6.0\build\net472\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.3.6.0\build\net472\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.targets'))" />
     <Error Condition="!Exists('..\packages\Microsoft.CodeAnalysis.Analyzers.3.3.2\build\Microsoft.CodeAnalysis.Analyzers.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Microsoft.CodeAnalysis.Analyzers.3.3.2\build\Microsoft.CodeAnalysis.Analyzers.props'))" />
     <Error Condition="!Exists('..\packages\Microsoft.CodeAnalysis.Analyzers.3.3.2\build\Microsoft.CodeAnalysis.Analyzers.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Microsoft.CodeAnalysis.Analyzers.3.3.2\build\Microsoft.CodeAnalysis.Analyzers.targets'))" />
   </Target>

Source/Orts.Simulation/packages.config

@@ -3,7 +3,6 @@
   <package id="Microsoft.CodeAnalysis.Analyzers" version="3.3.2" targetFramework="net472" developmentDependency="true" />
   <package id="Microsoft.CodeAnalysis.Common" version="4.0.1" targetFramework="net472" />
   <package id="Microsoft.CodeAnalysis.CSharp" version="4.0.1" targetFramework="net472" />
-  <package id="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" version="3.6.0" targetFramework="net472" />
   <package id="System.Buffers" version="4.5.1" targetFramework="net472" />
   <package id="System.Collections.Immutable" version="5.0.0" targetFramework="net472" />
   <package id="System.Memory" version="4.5.4" targetFramework="net472" />