Remove added nuget package

Author: irvinesunday

test/Microsoft.OpenApi.SmokeTests/Microsoft.OpenApi.SmokeTests.csproj

@@ -10,7 +10,6 @@
   <ItemGroup>
     <PackageReference Include="coverlet.collector" Version="6.0.2" PrivateAssets="all" />
     <PackageReference Include="coverlet.msbuild" Version="6.0.2" PrivateAssets="all" />
-    <PackageReference Include="Microsoft.CodeAnalysis.VisualBasic" Version="4.10.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageReference Include="xunit" Version="2.9.0" />