let hibernate clean entries

src/main/java/com/commafeed/backend/service/DatabaseCleaningService.java

@@ -16,7 +16,6 @@ import com.commafeed.backend.dao.FeedEntryDAO;
 import com.commafeed.backend.dao.FeedEntryStatusDAO;
 import com.commafeed.backend.dao.UnitOfWork;
 import com.commafeed.backend.model.Feed;
-import com.commafeed.backend.model.FeedEntry;
 import com.commafeed.backend.model.FeedEntryStatus;
 
 /**
@@ -35,25 +34,6 @@ public class DatabaseCleaningService {
 	private final FeedEntryContentDAO feedEntryContentDAO;
 	private final FeedEntryStatusDAO feedEntryStatusDAO;
 
-	public long cleanEntriesWithoutSubscriptions() {
-		log.info("cleaning entries without subscriptions");
-		long total = 0;
-		int deleted = 0;
-		do {
-			deleted = new UnitOfWork<Integer>(sessionFactory) {
-				@Override
-				protected Integer runInSession() throws Exception {
-					List<FeedEntry> entries = feedEntryDAO.findWithoutSubscriptions(BATCH_SIZE);
-					return feedEntryDAO.delete(entries);
-				}
-			}.run();
-			total += deleted;
-			log.info("removed {} entries without subscriptions", total);
-		} while (deleted != 0);
-		log.info("cleanup done: {} entries without subscriptions deleted", total);
-		return total;
-	}
-
 	public long cleanFeedsWithoutSubscriptions() {
 		log.info("cleaning feeds without subscriptions");
 		long total = 0;

src/main/java/com/commafeed/backend/task/OldStatusesCleanupTask.java

@@ -25,7 +25,7 @@ public class OldStatusesCleanupTask implements ScheduledTask {
 
 	@Override
 	public long getInitialDelay() {
-		return 5;
+		return 10;
 	}
 
 	@Override

src/main/java/com/commafeed/backend/task/OrphansCleanupTask.java

@@ -14,14 +14,13 @@ public class OrphansCleanupTask implements ScheduledTask {
 
 	@Override
 	public void run() {
-		cleaner.cleanEntriesWithoutSubscriptions();
 		cleaner.cleanFeedsWithoutSubscriptions();
 		cleaner.cleanContentsWithoutEntries();
 	}
 
 	@Override
 	public long getInitialDelay() {
-		return 30;
+		return 5;
 	}
 
 	@Override