time_zone: Clean up includes

src/common/time_zone.cpp

@@ -4,13 +4,13 @@
 #include <chrono>
 #include <exception>
 #include <iomanip>
+#include <map>
 #include <sstream>
 #include <stdexcept>
 #include <fmt/chrono.h>
 #include <fmt/core.h>
 
 #include "common/logging/log.h"
-#include "common/settings.h"
 #include "common/time_zone.h"
 
 namespace Common::TimeZone {