remove build event

SocketHttpListener.Portable/SocketHttpListener.Portable.csproj

@@ -95,9 +95,8 @@
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath32)\Microsoft\Portable\$(TargetFrameworkVersion)\Microsoft.Portable.CSharp.targets" />
   <PropertyGroup>
-    <PostBuildEvent>if $(ConfigurationName) == Release (
-xcopy "$(TargetPath)" "$(SolutionDir)\Nuget\dlls\" /y /d /r /i
-)</PostBuildEvent>
+    <PostBuildEvent>
+    </PostBuildEvent>
   </PropertyGroup>
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.