Remove confusing lowercase comparison

If case insensitive handling is wanted here then it needs to show all matches not just an arbitrary first one.

Since this forwards to searchlog which properly matches case insensitively anyway that does not seem particularly useful though.

src/server/wesnothd/server.cpp

@@ -2440,7 +2440,7 @@ void server::status_handler(
 	// If a simple username is given we'll check for its IP instead.
 	if(utils::isvalid_username(parameters)) {
 		for(const auto& player : player_connections_) {
-			if(utf8::lowercase(parameters) == utf8::lowercase(player.info().name())) {
+			if(parameters == player.name()) {
 				parameters = player.client_ip();
 				found_something = true;
 				break;