(maint) Removed files that no longer exist

- From solution file

Author: gep13

Source/GitReleaseManager.sln

@@ -11,20 +11,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "NuSpecs", "NuSpecs", "{87E2
 		..\Packaging\nuget\GitReleaseManager.Portable.nuspec = ..\Packaging\nuget\GitReleaseManager.Portable.nuspec
 	EndProjectSection
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "BuildScripts", "BuildScripts", "{2C8F25C5-0009-409B-8935-37BF6A5ED656}"
-	ProjectSection(SolutionItems) = preProject
-		..\BuildScripts\build.ps1 = ..\BuildScripts\build.ps1
-		..\BuildScripts\CodeAnalysis.props = ..\BuildScripts\CodeAnalysis.props
-		..\BuildScripts\CodeAnalysisReport.xsl = ..\BuildScripts\CodeAnalysisReport.xsl
-		..\BuildScripts\default.ps1 = ..\BuildScripts\default.ps1
-		..\BuildScripts\dupfinder.config = ..\BuildScripts\dupfinder.config
-		..\BuildScripts\dupfinder.xsl = ..\BuildScripts\dupfinder.xsl
-		..\BuildScripts\inspectcode.config = ..\BuildScripts\inspectcode.config
-		..\BuildScripts\inspectcode.xsl = ..\BuildScripts\inspectcode.xsl
-		..\BuildScripts\StyleCop.props = ..\BuildScripts\StyleCop.props
-		..\BuildScripts\StyleCopReport.xsl = ..\BuildScripts\StyleCopReport.xsl
-	EndProjectSection
-EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "AppVeyor", "AppVeyor", "{EF94B2A3-E548-43B3-8A63-C7B28B5779D4}"
 	ProjectSection(SolutionItems) = preProject
 		..\appveyor.yml = ..\appveyor.yml