Fixed ClassCastException

plugins/org.yakindu.sct.generator.core/src/org/yakindu/sct/generator/core/impl/AbstractSGraphModelGenerator.java

@@ -15,7 +15,6 @@ import java.io.PrintWriter;
 
 import org.eclipse.core.resources.IProject;
 import org.eclipse.emf.ecore.EObject;
-import org.eclipse.emf.ecore.util.EcoreUtil;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.console.ConsolePlugin;
 import org.eclipse.ui.console.IConsole;