Work around Dependencies node perf issues

Disabling the Dependencies node due to performance issues. This is
tracked by by the umbrella issue 2297 in project-system

https://github.com/dotnet/project-system/issues/2297

build/Targets/Imports.targets

@@ -245,6 +245,16 @@
     </SuggestedBindingRedirects>
   </ItemGroup>
 
+  <!-- 
+       Work around some UI delays in the new project system
+
+       https://github.com/dotnet/project-system/issues/2297
+
+  --> 
+  <ItemGroup>
+    <ProjectCapability Remove="DependenciesTree"/>
+  </ItemGroup>
+
   <Import Project="$(MSBuildTargetsFilePath)" Condition="'$(RoslynSdkProject)' != 'true'" />
   <Import Project="$(RoslynNetSdkRootPath)Sdk.targets" Condition="'$(RoslynSdkProject)' == 'true'" />
 
@@ -474,8 +484,8 @@
     https://github.com/dotnet/roslyn/issues/18753
   -->
   <Target Name="RemoveDuplicateXUnitContent">
-    <ItemGroup>
-      <Content Remove="@(Content)" Condition="'%(Filename)%(Extension)' == 'xunit.abstractions.dll'" />
+      <ItemGroup>
+        <Content Remove="@(Content)" Condition="'%(Filename)%(Extension)' == 'xunit.abstractions.dll'" />
     </ItemGroup>
   </Target>