remove Cluster.cpp from build list as it's been removed

windows/ZeroTierOne/ZeroTierOne.vcxproj

@@ -50,7 +50,6 @@
     <ClCompile Include="..\..\node\Capability.cpp" />
     <ClCompile Include="..\..\node\CertificateOfMembership.cpp" />
     <ClCompile Include="..\..\node\CertificateOfOwnership.cpp" />
-    <ClCompile Include="..\..\node\Cluster.cpp" />
     <ClCompile Include="..\..\node\Identity.cpp" />
     <ClCompile Include="..\..\node\IncomingPacket.cpp" />
     <ClCompile Include="..\..\node\InetAddress.cpp" />

windows/ZeroTierOne/ZeroTierOne.vcxproj.filters

@@ -168,9 +168,6 @@
     <ClCompile Include="..\..\node\Path.cpp">
       <Filter>Source Files\node</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\node\Cluster.cpp">
-      <Filter>Source Files\node</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\ext\miniupnpc\connecthostport.c">
       <Filter>Source Files\ext\miniupnpc</Filter>
     </ClCompile>