Re-enable stat watchers on windows

This reverts commit b8a99f94167a25f63ae096d9d5e2cc9cf70cecef.

src/node_file.cc

@@ -851,9 +851,7 @@ void InitFs(Handle<Object> target) {
   stats_constructor_template = Persistent<FunctionTemplate>::New(stat_templ);
   target->Set(String::NewSymbol("Stats"),
                stats_constructor_template->GetFunction());
-#ifdef __POSIX__
   StatWatcher::Initialize(target);
-#endif // __POSIX__
   File::Initialize(target);
 }
 

src/node_stat_watcher.cc

@@ -1,5 +1,3 @@
-#ifdef __POSIX__
-
 // Copyright 2009 Ryan Dahl <ry@tinyclouds.org>
 #include <node_stat_watcher.h>
 
@@ -113,5 +111,3 @@ void StatWatcher::Stop () {
 
 
 }  // namespace node
-
-#endif // __POSIX__