Remove

src/EditorFeatures/Core/LanguageServiceIndexFormat/SymbolMoniker.cs

@@ -14,8 +14,6 @@ internal sealed class SymbolMoniker
 
         public string Identifier { get; }
 
-        //public IPackageInformation? PackageInformation { get; }
-
         public SymbolMoniker(string scheme, string identifier)
         {
             this.Scheme = scheme;

src/VisualStudio/Core/Def/Implementation/FindUsages/VisualStudioFindSymbolMonikerUsagesService.cs

@@ -13,7 +13,7 @@
 using System.Threading.Tasks;
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.Editor.FindUsages;
-using Microsoft.CodeAnalysis.Editor.SymbolMonikers;
+using Microsoft.CodeAnalysis.Editor.LanguageServiceIndexFormat;
 using Microsoft.CodeAnalysis.FindUsages;
 using Microsoft.CodeAnalysis.Host.Mef;
 using Microsoft.CodeAnalysis.PooledObjects;