Remove Microsoft.CSharp nuget dependency

Author: Romfos

src/AutoMapper/AutoMapper.csproj

@@ -38,7 +38,6 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
     <PackageReference Include="Microsoft.Extensions.Options" Version="6.0.0" />
     <PackageReference Include="MinVer" Version="4.3.0" PrivateAssets="All" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="All" />