[UnboundedBlockingMpscQueue] Improve readability, do not call load()

There is no need to call load() on std::atomic if the default memory
order is used.

emper/UnboundedBlockingMpscQueue.hpp

@@ -54,7 +54,7 @@ class UnboundedBlockingMpscQueue : public Blockable<LogSubsystem::U_B_MPSC_Q> {
 
 		// Micro optimization, see if there is a blocked context
 		// before performing the atomic exchange operation.
-		if (blockedContext.load() != nullptr) {
+		if (blockedContext != nullptr) {
 			tryToWakeupBlockedContext<callerEnvironment>();
 		}
 	}