VS Project: exclude file not used on W32

w32/common/libmicrohttpd-files.vcxproj

@@ -21,7 +21,9 @@
     <ClCompile Include="$(MhdSrc)microhttpd\mhd_threads.c" />
     <ClCompile Include="$(MhdSrc)microhttpd\mhd_send.c" />
     <ClCompile Include="$(MhdSrc)microhttpd\mhd_sockets.c" />
-    <ClCompile Include="$(MhdSrc)microhttpd\mhd_itc.c" />
+    <ClCompile Include="$(MhdSrc)microhttpd\mhd_itc.c">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </ClCompile>
     <ClCompile Include="$(MhdSrc)microhttpd\mhd_compat.c">
       <ExcludedFromBuild Condition="'$(PlatformToolsetVersion)'&gt;='140'">true</ExcludedFromBuild>
     </ClCompile>