Fix solution file

Removed invalid file references

sdk.sln

@@ -3,21 +3,6 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 16
 VisualStudioVersion = 16.0.29417.175
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "build", "build", "{50A89C27-BA35-44B2-AC57-E54551791C64}"
-	ProjectSection(SolutionItems) = preProject
-		build\build.ps1 = build\build.ps1
-		build\build.sh = build\build.sh
-		build\cibuild.cmd = build\cibuild.cmd
-		build\cibuild.sh = build\cibuild.sh
-		build\dogfood.cmd = build\dogfood.cmd
-		build\dogfood.sh = build\dogfood.sh
-		build\NuGet.props = build\NuGet.props
-		build\SignToolData.json = build\SignToolData.json
-		build\Toolset.proj = build\Toolset.proj
-		build\uploadperfresult.cmd = build\uploadperfresult.cmd
-		build\Versions.props = build\Versions.props
-	EndProjectSection
-EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{9CAEE03D-60F1-4E77-B25B-9CD8757E1F09}"
 	ProjectSection(SolutionItems) = preProject
 		.gitattributes = .gitattributes
@@ -36,10 +21,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 	EndProjectSection
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{22AB674F-ED91-4FBC-BFEE-8A1E82F9F05E}"
-	ProjectSection(SolutionItems) = preProject
-		src\Directory.Build.props = src\Directory.Build.props
-		src\Directory.Build.targets = src\Directory.Build.targets
-	EndProjectSection
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Tasks", "Tasks", "{1FEED16D-E07D-47C1-BB4C-56CD9F42B53B}"
 EndProject