lib: Remove printing of worker node state

The information is already sent over the wire and shown in the SDL GUI
(if available). No need to dump it to stdout as well.
That reminds me, I should fix logging.c to output to stderr instead.

Author: vkoskiv

src/lib/protocol/worker.c

@@ -277,17 +277,12 @@ static cJSON *startRender(int connectionSocket, size_t thread_limit) {
 		if (pauser == 256 / active_msec) {
 			cJSON *stats = newAction("stats");
 			cJSON *array = cJSON_AddArrayToObject(stats, "tiles");
-			logr(plain, "\33[2K\r");
-			logr(plain, "( ");
 			for (size_t t = 0; t < threadCount; ++t) {
 				struct render_tile *tile = workerThreadStates[t].current;
 				if (tile) {
-					float completion = (float)tile->completed_samples / g_worker_renderer->prefs.sampleCount;
 					cJSON_AddItemToArray(array, encodeTile(tile));
-					logr(plain, "%i: %.1f%s", tile->index, completion, t < threadCount - 1 ? ", " : " ");
 				}
 			}
-			logr(plain, ")");
 
 			mutex_lock(g_worker_socket_mutex);
 			if (!sendJSON(connectionSocket, stats, NULL)) {