Revert "Change get_work to use a timeout when trying to tq_pop as a sanity failsafe in case of unusual circumstances."

This reverts commit 7b9b078114.

Conflicts:

	util.c

Timeout was a bandaid for other going-idle reasons and never helped. Revert it.

main.c

@@ -1225,8 +1225,6 @@ static void flush_requests(bool longpoll)
 
 static bool get_work(struct work *work, bool queued)
 {
-	struct timeval now;
-	struct timespec abstime = {};
 	struct thr_info *thr = &thr_info[0];
 	struct work *work_heap;
 	bool ret = false;
@@ -1235,9 +1233,6 @@ static bool get_work(struct work *work, bool queued)
 	getwork_requested++;
 
 retry:
-	gettimeofday(&now, NULL);
-	abstime.tv_sec = now.tv_sec + 60;
-
 	if (unlikely(!queued && !queue_request())) {
 		applog(LOG_WARNING, "Failed to queue_request in get_work");
 		goto out;
@@ -1265,12 +1260,10 @@ retry:
 		applog(LOG_WARNING, "Resumed retrieving work from server");
 	}
 
-	/* Wait for 1st response, or get cached response. We really should
-	 * never time out on the pop request but something might go amiss :/
-	 */
-	work_heap = tq_pop(thr->q, &abstime);
+	/* wait for 1st response, or get cached response */
+	work_heap = tq_pop(thr->q, NULL);
 	if (unlikely(!work_heap)) {
-		applog(LOG_INFO, "Failed to tq_pop in get_work");
+		applog(LOG_WARNING, "Failed to tq_pop in get_work");
 		goto out;
 	}
 	dec_queued();

util.c

@@ -573,11 +573,8 @@ void *tq_pop(struct thread_q *tq, const struct timespec *abstime)
 		rc = pthread_cond_timedwait(&tq->cond, &tq->mutex, abstime);
 	else
 		rc = pthread_cond_wait(&tq->cond, &tq->mutex);
-	if (unlikely(rc)) {
-		if (rc == ETIMEDOUT)
-			applog(LOG_WARNING, "Timed out waiting in tq_pop");
+	if (rc)
 		goto out;
-	}
 	if (list_empty(&tq->q))
 		goto out;