Revert "Clear the pool idle flag only on the pool chosen at startup, allowing it to be cleared by the watchpool thread for the other pools."

This reverts commit 370e8fc862.

cgminer.c

@@ -6930,10 +6930,10 @@ static void *test_pool_thread(void *arg)
 
 	if (pool_active(pool, false)) {
 		pool_tset(pool, &pool->lagging);
+		pool_tclear(pool, &pool->idle);
 		applog(LOG_INFO, "Pool %d %s active", pool->pool_no, pool->rpc_url);
 		mutex_lock(&control_lock);
 		if (!pools_active) {
-			pool_tclear(pool, &pool->idle);
 			currentpool = pool;
 			if (pool->pool_no != 0)
 				applog(LOG_NOTICE, "Switching to pool %d %s - first alive pool", pool->pool_no, pool->rpc_url);