cleanup msbuild dependencies

Author: arturcic

src/GitVersionTask.MsBuild/GitVersionTask.MsBuild.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
         <TargetFrameworks>net472;netstandard2.0</TargetFrameworks>
@@ -8,7 +8,6 @@
 
     <ItemGroup>
         <PackageReference Condition="'$(TargetFramework)' == 'netstandard2.0'" Include="System.Runtime.Loader" Version="4.3.0" PrivateAssets="All" />
-        <PackageReference Include="Microsoft.Build" Version="16.4.0" NoWarn="NU1701" />
         <PackageReference Include="Microsoft.Build.Framework" Version="16.4.0" />
     </ItemGroup>
 

src/GitVersionTask.Tests/GitVersionTask.Tests.csproj

@@ -6,7 +6,6 @@
 
     <Import Project="..\test.props" />
     <ItemGroup>
-        <PackageReference Include="Microsoft.Build.Tasks.Core" Version="16.4.0" />
         <PackageReference Include="LibGit2Sharp" Version="$(PackageVersion_LibGit2Sharp)" />
         <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="$(PackageVersion_MicrosoftExtensions)" />
     </ItemGroup>