LMS-2648 allow not to set the plate before the dataset object is created

SVN: 23720

screening/source/java/ch/systemsx/cisd/openbis/dss/etl/jython/SimpleImageDataSetRegistrator.java

@@ -530,16 +530,6 @@ public class SimpleImageDataSetRegistrator
         dataset.setFileFormatCode(simpleImageConfig.getFileFormatType());
         dataset.setMeasured(simpleImageConfig.isMeasuredData());
 
-        String helpMsg = "Use setPlate(spaceCode, plateCode) call to do that.";
-        if (simpleImageConfig.getPlateSpace() == null)
-        {
-            throw new UserFailureException("No space of the plate has been specified! " + helpMsg);
-        }
-        if (simpleImageConfig.getPlateCode() == null)
-        {
-            throw new UserFailureException("No plate code has been specified! " + helpMsg);
-        }
-
         dataset.setSample(simpleImageConfig.getPlateSpace(), simpleImageConfig.getPlateCode());
         dataset.setIncomingDirectory(incoming);