Remove fakepoll.h.

It was only used for Windows XP and lower.

This also bumps the _WIN32_WINNT define in the stdafx precompiled headers to set the minimum version as Windows Vista.

Source/Core/Core/Core.vcxproj

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|x64">
@@ -362,7 +362,6 @@
     <ClInclude Include="HW\WiimoteReal\WiimoteReal.h" />
     <ClInclude Include="HW\WiimoteReal\WiimoteRealBase.h" />
     <ClInclude Include="HW\WII_IPC.h" />
-    <ClInclude Include="IPC_HLE\fakepoll.h" />
     <ClInclude Include="IPC_HLE\hci.h" />
     <ClInclude Include="IPC_HLE\ICMP.h" />
     <ClInclude Include="IPC_HLE\l2cap.h" />
@@ -463,4 +462,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>