Small clean in registry impl

src/details/registry.cpp

@@ -32,7 +32,6 @@ namespace spdlog {
 #else
             auto color_sink = std::make_shared<sinks::ansicolor_stdout_sink_mt>();
 #endif
-
             const char *default_logger_name = "";
             default_logger_ = std::make_shared<spdlog::logger>(default_logger_name, std::move(color_sink));
             loggers_[default_logger_name] = default_logger_;