unused imports removed

Author: thurka

visualvm/jvmstat/src/org/graalvm/visualvm/jvmstat/application/JvmstatApplicationProvider.java

@@ -51,9 +51,6 @@
 import java.util.logging.Logger;
 import javax.swing.SwingUtilities;
 import javax.swing.Timer;
-import org.graalvm.visualvm.tools.jmx.JmxModelFactory;
-import org.graalvm.visualvm.tools.jvmstat.JvmJvmstatModelFactory;
-import org.graalvm.visualvm.tools.jvmstat.JvmstatModelFactory;
 import org.openide.DialogDisplayer;
 import org.openide.NotifyDescriptor;
 import org.openide.util.NbBundle;