break circular dependency: random/sync -> util -> random/sync

src/sync.cpp

@@ -4,13 +4,15 @@
 
 #include <sync.h>
 
-#include <memory>
-#include <set>
-#include <util.h>
+#include <logging.h>
 #include <utilstrencodings.h>
 
 #include <stdio.h>
 
+#include <map>
+#include <memory>
+#include <set>
+
 #ifdef DEBUG_LOCKCONTENTION
 #if !defined(HAVE_THREAD_LOCAL)
 static_assert(false, "thread_local is not supported");