perf_timer: fix pause/resume macros dereferencing too much

src/common/perf_timer.h

@@ -84,7 +84,7 @@ void set_performance_timer_log_level(el::Level level);
 #define PERF_TIMER_START_UNIT(name, unit) std::unique_ptr<tools::LoggingPerformanceTimer> PERF_TIMER_NAME(name)(new tools::LoggingPerformanceTimer(#name, "perf." MONERO_DEFAULT_LOG_CATEGORY, unit, el::Level::Info))
 #define PERF_TIMER_START(name) PERF_TIMER_START_UNIT(name, 1000000)
 #define PERF_TIMER_STOP(name) do { PERF_TIMER_NAME(name).reset(NULL); } while(0)
-#define PERF_TIMER_PAUSE(name) PERF_TIMER_NAME(name)->pause()
-#define PERF_TIMER_RESUME(name) PERF_TIMER_NAME(name)->resume()
+#define PERF_TIMER_PAUSE(name) PERF_TIMER_NAME(name).pause()
+#define PERF_TIMER_RESUME(name) PERF_TIMER_NAME(name).resume()
 
 }