Remove unexisting project from solution (dotnet#335)

Author: Ivanidzo4ka

Microsoft.ML.sln

@@ -5,9 +5,6 @@ MinimumVisualStudioVersion = 10.0.40219.1
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.ML.Core", "src\Microsoft.ML.Core\Microsoft.ML.Core.csproj", "{A6CA6CC6-5D7C-4D7F-A0F5-35E14B383B0A}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{09EADF06-BE25-4228-AB53-95AE3E15B530}"
-	ProjectSection(SolutionItems) = preProject
-		src\Microsoft.ML.Commands\Microsoft.ML.Commands.csproj = src\Microsoft.ML.Commands\Microsoft.ML.Commands.csproj
-	EndProjectSection
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "test", "test", "{AED9C836-31E3-4F3F-8ABC-929555D3F3C4}"
 EndProject