diff --git a/src/tools/illink/illink.sln b/src/tools/illink/illink.sln
index 5cf19d14719c6..87e99d208c7fb 100644
--- a/src/tools/illink/illink.sln
+++ b/src/tools/illink/illink.sln
@@ -37,16 +37,6 @@ Project("{D954291E-2A0B-460D-934E-DC6B0785DB48}") = "ILLink.Shared", "src\ILLink
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ILLink.RoslynAnalyzer.Tests.Generator", "test\ILLink.RoslynAnalyzer.Tests.Generator\ILLink.RoslynAnalyzer.Tests.Generator.csproj", "{3DDE7064-4B68-4979-8843-FDF4CE5A5140}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "external", "external", "{8FD57ADB-B449-4960-A141-845C1E2E26EC}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Mono.Cecil", "external\cecil\Mono.Cecil.csproj", "{7C068318-84AF-4861-9E5F-6F8A3BF38C9D}"
-EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "cecil", "cecil", "{223B8007-F26C-4E28-B28D-E43C97F7EE23}"
-EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "symbols", "symbols", "{19C783E3-B710-4F25-A977-0ADDA4D2CFEE}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Mono.Cecil.Pdb", "external\cecil\symbols\pdb\Mono.Cecil.Pdb.csproj", "{AF7722A0-D1A7-4294-A181-B88B6BD67C6E}"
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -213,30 +203,6 @@ Global
 		{3DDE7064-4B68-4979-8843-FDF4CE5A5140}.Release|x64.Build.0 = Release|Any CPU
 		{3DDE7064-4B68-4979-8843-FDF4CE5A5140}.Release|x86.ActiveCfg = Release|Any CPU
 		{3DDE7064-4B68-4979-8843-FDF4CE5A5140}.Release|x86.Build.0 = Release|Any CPU
-		{7C068318-84AF-4861-9E5F-6F8A3BF38C9D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{7C068318-84AF-4861-9E5F-6F8A3BF38C9D}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{7C068318-84AF-4861-9E5F-6F8A3BF38C9D}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{7C068318-84AF-4861-9E5F-6F8A3BF38C9D}.Debug|x64.Build.0 = Debug|Any CPU
-		{7C068318-84AF-4861-9E5F-6F8A3BF38C9D}.Debug|x86.ActiveCfg = Debug|Any CPU
-		{7C068318-84AF-4861-9E5F-6F8A3BF38C9D}.Debug|x86.Build.0 = Debug|Any CPU
-		{7C068318-84AF-4861-9E5F-6F8A3BF38C9D}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{7C068318-84AF-4861-9E5F-6F8A3BF38C9D}.Release|Any CPU.Build.0 = Release|Any CPU
-		{7C068318-84AF-4861-9E5F-6F8A3BF38C9D}.Release|x64.ActiveCfg = Release|Any CPU
-		{7C068318-84AF-4861-9E5F-6F8A3BF38C9D}.Release|x64.Build.0 = Release|Any CPU
-		{7C068318-84AF-4861-9E5F-6F8A3BF38C9D}.Release|x86.ActiveCfg = Release|Any CPU
-		{7C068318-84AF-4861-9E5F-6F8A3BF38C9D}.Release|x86.Build.0 = Release|Any CPU
-		{AF7722A0-D1A7-4294-A181-B88B6BD67C6E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{AF7722A0-D1A7-4294-A181-B88B6BD67C6E}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{AF7722A0-D1A7-4294-A181-B88B6BD67C6E}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{AF7722A0-D1A7-4294-A181-B88B6BD67C6E}.Debug|x64.Build.0 = Debug|Any CPU
-		{AF7722A0-D1A7-4294-A181-B88B6BD67C6E}.Debug|x86.ActiveCfg = Debug|Any CPU
-		{AF7722A0-D1A7-4294-A181-B88B6BD67C6E}.Debug|x86.Build.0 = Debug|Any CPU
-		{AF7722A0-D1A7-4294-A181-B88B6BD67C6E}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{AF7722A0-D1A7-4294-A181-B88B6BD67C6E}.Release|Any CPU.Build.0 = Release|Any CPU
-		{AF7722A0-D1A7-4294-A181-B88B6BD67C6E}.Release|x64.ActiveCfg = Release|Any CPU
-		{AF7722A0-D1A7-4294-A181-B88B6BD67C6E}.Release|x64.Build.0 = Release|Any CPU
-		{AF7722A0-D1A7-4294-A181-B88B6BD67C6E}.Release|x86.ActiveCfg = Release|Any CPU
-		{AF7722A0-D1A7-4294-A181-B88B6BD67C6E}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -252,10 +218,6 @@ Global
 		{8DA71B3B-5809-44E5-A018-5DE5C6FF6C2A} = {03EB085F-3E2E-4A68-A7DF-951ADF59A0CC}
 		{6D20F334-B7E4-4585-854B-8A0E2B29B4AA} = {AA0569FB-73E9-4B42-9A19-714BB1229DAE}
 		{3DDE7064-4B68-4979-8843-FDF4CE5A5140} = {C2969923-7BAA-4FE4-853C-F670B0D3C6C8}
-		{7C068318-84AF-4861-9E5F-6F8A3BF38C9D} = {8FD57ADB-B449-4960-A141-845C1E2E26EC}
-		{223B8007-F26C-4E28-B28D-E43C97F7EE23} = {8FD57ADB-B449-4960-A141-845C1E2E26EC}
-		{19C783E3-B710-4F25-A977-0ADDA4D2CFEE} = {223B8007-F26C-4E28-B28D-E43C97F7EE23}
-		{AF7722A0-D1A7-4294-A181-B88B6BD67C6E} = {19C783E3-B710-4F25-A977-0ADDA4D2CFEE}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {E43A3901-42B0-48CA-BB36-5CD40A99A6EE}