Delete dummy installation file after T4 scaffolding package is installed.

src/AddIns/Misc/PackageManagement/Project/Src/EnvDTE/Project.cs

@@ -183,5 +183,10 @@ namespace ICSharpCode.PackageManagement.EnvDTE
 		{
 			return Path.GetExtension(FileName).ToLowerInvariant();
 		}
+		
+		internal virtual void DeleteFile(string fileName)
+		{
+			fileService.RemoveFile(fileName);
+		}
 	}
 }

src/AddIns/Misc/PackageManagement/Project/Src/EnvDTE/ProjectItem.cs

@@ -105,11 +105,9 @@ namespace ICSharpCode.PackageManagement.EnvDTE
 			return new ProjectItemRelationship(this, msbuildProjectItem);
 		}
 		
-		/// <summary>
-		/// TODO: delete project item from project
-		/// </summary>
 		public void Delete()
 		{
+			ContainingProject.DeleteFile(projectItem.FileName);
 		}
 	}
 }

src/AddIns/Misc/PackageManagement/Test/Src/EnvDTE/ProjectItemTests.cs

@@ -122,5 +122,19 @@ namespace PackageManagement.Tests.EnvDTE
 			
 			Assert.AreEqual(Constants.VsProjectItemKindPhysicalFile, kind);
 		}
+		
+		[Test]
+		public void Delete_ProjectItemIsFile_FileIsDeleted()
+		{
+			CreateProjectItems();
+			msbuildProject.FileName = @"d:\projects\myproject\myproject.csproj";
+			msbuildProject.AddFile(@"src\program.cs");
+			ProjectItem directoryItem = projectItems.Item("src");
+			ProjectItem fileItem = directoryItem.ProjectItems.Item("program.cs");
+			
+			fileItem.Delete();
+			
+			Assert.AreEqual(@"d:\projects\myproject\src\program.cs", project.FakeFileService.PathPassedToRemoveFile);
+		}
 	}
 }