Remove dead code

Remove Mono workarounds for missing files. Mono has been
shipping the files for some time now.

Author: mhutch

src/fsharp/FSharp.Build/Microsoft.Portable.FSharp.targets

@@ -24,60 +24,8 @@ Copyright (C) Microsoft Corporation. All rights reserved.
                 Condition="Exists('$(MSBuildExtensionsPath32)\Microsoft\Portable\v4.0\Microsoft.Portable.Common.targets') AND
                            !Exists('$(MSBuildExtensionsPath32)\Microsoft\Portable\Microsoft.Portable.Core.props')"/>
 
-    
-    <!-- Try to do it ourselves - Explicitly include contents of Microsoft.Portable.Core.props + Microsoft.FSharp.Targets + Microsoft.Portable.Core.targets -->
-    <!-- START MONO 3.2.7 WORKAROUND PART 1 -->
-        <PropertyGroup 
-                Condition="(!Exists('$(MSBuildExtensionsPath32)\Microsoft\Portable\v4.0\Microsoft.Portable.Common.targets')) AND
-                           (!Exists('$(MSBuildExtensionsPath32)\Microsoft\Portable\Microsoft.Portable.Core.props'))">
-		<AvailablePlatforms>Any CPU</AvailablePlatforms>
-
-		<TargetPlatformIdentifier>Portable</TargetPlatformIdentifier>
-		<TargetFrameworkIdentifier>.NETPortable</TargetFrameworkIdentifier>
-		<TargetFrameworkMonikerDisplayName>.NET Portable Subset</TargetFrameworkMonikerDisplayName>
-
-		<AddAdditionalExplicitAssemblyReferences>false</AddAdditionalExplicitAssemblyReferences>
-		<NoStdLib>true</NoStdLib>
-
-		<ImplicitlyExpandTargetFramework Condition="'$(ImplicitlyExpandTargetFramework)' == '' ">true</ImplicitlyExpandTargetFramework>
-	</PropertyGroup>
-        <!-- END MONO 3.2.7 WORKAROUND PART 1 -->
-
-
 	<Import Project="$(MSBuildExtensionsPath32)\..\Microsoft SDKs\F#\3.1\Framework\v4.0\Microsoft.FSharp.Targets" />
 
-
-    <!-- START MONO 3.2.7 WORKAROUND PART 2 -->
-	<PropertyGroup 
-                Condition="(!Exists('$(MSBuildExtensionsPath32)\Microsoft\Portable\v4.0\Microsoft.Portable.Common.targets')) AND
-                           (!Exists('$(MSBuildExtensionsPath32)\Microsoft\Portable\Microsoft.Portable.Core.props'))" >
-		<ResolveReferencesDependsOn>
-			$(ResolveReferencesDependsOn);
-			ImplicitlyExpandTargetFramework;
-		</ResolveReferencesDependsOn>
-
-		<ImplicitlyExpandTargetFrameworkDependsOn>
-			$(ImplicitlyExpandTargetFrameworkDependsOn);
-			GetReferenceAssemblyPaths
-		</ImplicitlyExpandTargetFrameworkDependsOn>
-	</PropertyGroup>
-
-	<Target Name="ImplicitlyExpandTargetFramework"
-		DependsOnTargets="$(ImplicitlyExpandTargetFrameworkDependsOn)"
-                Condition="(!Exists('$(MSBuildExtensionsPath32)\Microsoft\Portable\v4.0\Microsoft.Portable.Common.targets')) AND
-                           (!Exists('$(MSBuildExtensionsPath32)\Microsoft\Portable\Microsoft.Portable.Core.props'))" >
-
-		<ItemGroup>
-			<ReferenceAssemblyPaths Include="$(_TargetFrameworkDirectories)"/>
-			<ReferencePath Include="%(ReferenceAssemblyPaths.Identity)\*.dll">
-				<CopyLocal>false</CopyLocal>
-				<ResolvedFrom>ImplicitlyExpandTargetFramework</ResolvedFrom>
-				<IsSystemReference>True</IsSystemReference>
-			</ReferencePath>
-		</ItemGroup>
-	</Target>
-        <!-- END MONO 3.2.7 WORKAROUND PART 2 -->
-
 	<Import Project="$(MSBuildExtensionsPath32)\Microsoft\Portable\Microsoft.Portable.Core.targets"
                 Condition="Exists('$(MSBuildExtensionsPath32)\Microsoft\Portable\Microsoft.Portable.Core.props')"/>