removed unused usings

src/EditorFeatures/Core/Implementation/TodoComment/TodoCommentIncrementalAnalyzerProvider.cs

@@ -7,7 +7,6 @@
 using System.Runtime.CompilerServices;
 using System.Threading;
 using Microsoft.CodeAnalysis.Common;
-using Microsoft.CodeAnalysis.Options;
 using Microsoft.CodeAnalysis.SolutionCrawler;
 
 namespace Microsoft.CodeAnalysis.Editor.Implementation.TodoComments

src/VisualStudio/Core/Impl/CodeModel/CodeModelIncrementalAnalyzer.cs

@@ -10,7 +10,6 @@
 using Microsoft.CodeAnalysis.Options;
 using Microsoft.CodeAnalysis.Shared.TestHooks;
 using Microsoft.CodeAnalysis.SolutionCrawler;
-using Microsoft.VisualStudio.LanguageServices.Implementation.Interop;
 using Microsoft.VisualStudio.LanguageServices.Implementation.ProjectSystem;
 using Roslyn.Utilities;