MINOR: Fixed test to not expect logging

SVN: 22926

datastore_server/sourceTest/java/ch/systemsx/cisd/etlserver/registrator/JythonTopLevelDataSetRegistratorTest.java

@@ -744,8 +744,6 @@ public class JythonTopLevelDataSetRegistratorTest extends AbstractJythonDataSetH
         assertEquals(0, MockStorageProcessor.instance.incomingDirs.size());
         assertEquals(0, MockStorageProcessor.instance.calledCommitCount);
 
-        assertTrue(logAppender.getLogContent(), logAppender.getLogContent().length() > 0);
-
         TestingDataSetHandler theHandler = (TestingDataSetHandler) handler;
         assertFalse(didServiceRollbackHappen);
         assertFalse(theHandler.didTransactionRollbackHappen);