Update log4j

Author: bbimber

SequenceAnalysis/api-src/org/labkey/api/sequenceanalysis/pipeline/ReferenceGenomeManager.java

@@ -3,7 +3,6 @@
 import org.apache.commons.io.FileUtils;
 import org.apache.logging.log4j.Logger;
 import com.google.common.io.Files;
-import org.apache.log4j.Logger;
 import org.labkey.api.pipeline.PipelineJobException;
 import org.labkey.api.sequenceanalysis.run.SimpleScriptWrapper;