Remove this reference which struggles to resolve

Author: GrahamTheCoder

Vsix/Vsix.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>net472</TargetFramework>
     <ImplicitUsings>disable</ImplicitUsings>
@@ -18,7 +18,6 @@
     <PackageReference Include="Microsoft.VisualStudio.SDK" Version="17.14.40265" ExcludeAssets="runtime" />
     <PackageReference Include="Microsoft.VisualStudio.LanguageServices" Version="4.14.0" />
     <PackageReference Include="Basic.Reference.Assemblies.NetStandard20" Version="1.8.4" />
-    <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" Version="10.0.2" />
   </ItemGroup>
 
   <ItemGroup>