Remove decrease of listen backlog which is of questionable utility

src/connector.c

@@ -453,10 +453,8 @@ static client_instance_t *ref_client_by_id(cdata_t *cdata, int64_t id)
 void *receiver(void *arg)
 {
 	cdata_t *cdata = (cdata_t *)arg;
-	bool dropped_backlog = false;
 	struct epoll_event event;
 	uint64_t serverfds, i;
-	time_t start_t;
 	int ret, epfd;
 
 	rename_proc("creceiver");
@@ -481,21 +479,10 @@ void *receiver(void *arg)
 
 	while (!cdata->accept)
 		cksleep_ms(1);
-	start_t = time(NULL);
 
 	while (42) {
 		client_instance_t *client;
 
-		if (unlikely(!dropped_backlog && time(NULL) - start_t > 90)) {
-			/* When we first start we listen to as many connections
-			 * as possible. After the first minute we drop the
-			 * listen to the minimum to effectively ratelimit how
-			 * fast we can receive new connections. */
-			dropped_backlog = true;
-			LOGNOTICE("Dropping server listen backlog to 0");
-			for (i = 0; i < serverfds; i++)
-				listen(cdata->serverfd[i], 0);
-		}
 		while (unlikely(!cdata->accept))
 			cksleep_ms(10);
 		ret = epoll_wait(epfd, &event, 1, 1000);