Reorganized the imports

Author: himi

org.omg.sysml.plantuml/src/org/omg/sysml/plantuml/VCaseMembers.java

@@ -27,9 +27,7 @@
 import java.util.ArrayList;
 import java.util.List;
 
-import org.omg.sysml.lang.sysml.ActionDefinition;
 import org.omg.sysml.lang.sysml.ActionUsage;
-import org.omg.sysml.lang.sysml.CaseUsage;
 import org.omg.sysml.lang.sysml.Element;
 import org.omg.sysml.lang.sysml.Membership;
 import org.omg.sysml.lang.sysml.ObjectiveMembership;