Delete the checked-in webkit .vcproj (and ancillary .sln) files.

webkit/build/WebCore/WebCore_prebuild.vcproj

Index: webkit/build/WebCore/WebCore_prebuild.vcproj
===================================================================
--- webkit/build/WebCore/WebCore_prebuild.vcproj	(revision 15753)
+++ webkit/build/WebCore/WebCore_prebuild.vcproj	(working copy)
@@ -1,88 +0,0 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
-	ProjectType="Visual C++"
-	Version="8.00"
-	Name="WebCore_prebuild"
-	ProjectGUID="{1444235E-0E97-4C80-A73E-EE73F3706C32}"
-	RootNamespace="WebCore_prebuild"
-	Keyword="Win32Proj"
-	>
-	<Platforms>
-		<Platform
-			Name="Win32"
-		/>
-	</Platforms>
-	<ToolFiles>
-		<ToolFile
-			RelativePath="..\webkit_version.rules"
-		/>
-	</ToolFiles>
-	<Configurations>
-		<Configuration
-			Name="Debug|Win32"
-			ConfigurationType="10"
-			InheritedPropertySheets="$(SolutionDir)..\build\debug.vsprops;..\precompiled_webkit.vsprops;.\webcore.vsprops"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="WebKitVersion"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-		<Configuration
-			Name="Release|Win32"
-			ConfigurationType="10"
-			InheritedPropertySheets="$(SolutionDir)..\build\release.vsprops;.\webcore.vsprops"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="WebKitVersion"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-	</Configurations>
-	<References>
-	</References>
-	<Files>
-		<File
-			RelativePath="..\..\..\third_party\WebKit\WebCore\Configurations\Version.xcconfig"
-			>
-			<FileConfiguration
-				Name="Debug|Win32"
-				>
-				<Tool
-					Name="WebKitVersion"
-				/>
-			</FileConfiguration>
-			<FileConfiguration
-				Name="Release|Win32"
-				>
-				<Tool
-					Name="WebKitVersion"
-				/>
-			</FileConfiguration>
-		</File>
-	</Files>
-	<Globals>
-	</Globals>
-</VisualStudioProject>