Fix issue where we would copy the lib always

Which in turn will make the build fail if the developers are using iis proper to develop.

Author: NikolaSivkov

LibSass.NET/libsassnet.targets

@@ -1,12 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup>
-    <NativeLibs Include="$(MSBuildThisFileDirectory)**\*.dll" />
-    <None Include="@(NativeLibs)">
-      <Link>%(RecursiveDir)%(FileName)%(Extension)</Link>
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </None>
-  </ItemGroup>
   <ItemGroup>
    <NativeLibs Condition="$(Platform) == 'AnyCPU' Or $(Platform) == 'x64'" Include="$(MSBuildThisFileDirectory)x64\*.dll" />
 	<NativeLibs Condition="$(Platform) == 'x86'" Include="$(MSBuildThisFileDirectory)x86\*.dll" />
@@ -15,4 +8,4 @@
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
   </ItemGroup>
-</Project>
+</Project>