[ASIP-115] Use Woodstox XML parser to hide too long text from the regex

MessageContentAnalyzer-ejb/src/main/java/net/ihe/gazelle/contentanalyzer/app/AnalyzerBeanBusiness.java

@@ -18,9 +18,6 @@ import org.jboss.seam.contexts.Lifecycle;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import javax.faces.context.ExternalContext;
-import javax.faces.context.FacesContext;
-import javax.persistence.EntityManager;
 import javax.xml.bind.DatatypeConverter;
 import java.io.File;
 import java.io.IOException;