diff --git a/src/Features/Core/Portable/IncrementalCaches/SymbolTreeInfoIncrementalAnalyzerProvider.cs b/src/Features/Core/Portable/IncrementalCaches/SymbolTreeInfoIncrementalAnalyzerProvider.cs
index 3f5e490cda76634f07a12e326da7cfb24d6c2951..dff97209dddf9ce6488f818174d3d2e6cfd9f5c1 100644
--- a/src/Features/Core/Portable/IncrementalCaches/SymbolTreeInfoIncrementalAnalyzerProvider.cs
+++ b/src/Features/Core/Portable/IncrementalCaches/SymbolTreeInfoIncrementalAnalyzerProvider.cs
@@ -14,7 +14,6 @@
 using Microsoft.CodeAnalysis.FindSymbols.SymbolTree;
 using Microsoft.CodeAnalysis.Host;
 using Microsoft.CodeAnalysis.Host.Mef;
-using Microsoft.CodeAnalysis.Remote;
 using Microsoft.CodeAnalysis.SolutionCrawler;
 using Roslyn.Utilities;
 
diff --git a/src/Workspaces/Core/Portable/FindSymbols/SymbolFinder_Callers.cs b/src/Workspaces/Core/Portable/FindSymbols/SymbolFinder_Callers.cs
index 0dca901e6f5ef05ac0c73936d2c4ba9713d741f1..61f826a8d441795d1874562fd7fd5fb12dbcc6c9 100644
--- a/src/Workspaces/Core/Portable/FindSymbols/SymbolFinder_Callers.cs
+++ b/src/Workspaces/Core/Portable/FindSymbols/SymbolFinder_Callers.cs
@@ -2,14 +2,12 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
 using System.Collections.Generic;
 using System.Collections.Immutable;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.CodeAnalysis.Shared.Utilities;
-using Roslyn.Utilities;
 
 namespace Microsoft.CodeAnalysis.FindSymbols
 {
diff --git a/src/Workspaces/Core/Portable/FindSymbols/SymbolFinder_FindReferences_Current.cs b/src/Workspaces/Core/Portable/FindSymbols/SymbolFinder_FindReferences_Current.cs
index dbeca8e3d05c95580ab350ddc2c8ff98a37bf30a..ade24bceec3c4f9997f0ab62aaf60efedee2d753 100644
--- a/src/Workspaces/Core/Portable/FindSymbols/SymbolFinder_FindReferences_Current.cs
+++ b/src/Workspaces/Core/Portable/FindSymbols/SymbolFinder_FindReferences_Current.cs
@@ -9,7 +9,6 @@
 using Microsoft.CodeAnalysis.FindSymbols.Finders;
 using Microsoft.CodeAnalysis.Internal.Log;
 using Microsoft.CodeAnalysis.Remote;
-using Roslyn.Utilities;
 
 namespace Microsoft.CodeAnalysis.FindSymbols
 {
diff --git a/src/Workspaces/Core/Portable/FindSymbols/SymbolFinder_FindReferences_Legacy.cs b/src/Workspaces/Core/Portable/FindSymbols/SymbolFinder_FindReferences_Legacy.cs
index 155fe4db849bf5225f2e10872da1f51a82f4b271..fe5517252a992c382a2b427862e9f20974edcde8 100644
--- a/src/Workspaces/Core/Portable/FindSymbols/SymbolFinder_FindReferences_Legacy.cs
+++ b/src/Workspaces/Core/Portable/FindSymbols/SymbolFinder_FindReferences_Legacy.cs
@@ -2,12 +2,10 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
 using System.Collections.Generic;
 using System.Collections.Immutable;
 using System.Threading;
 using System.Threading.Tasks;
-using Roslyn.Utilities;
 
 namespace Microsoft.CodeAnalysis.FindSymbols
 {