Cosmetic Change (Removed unused Imports)

jme3-core/src/com/jme3/gde/core/errorreport/RendererInfoAction.java

@@ -33,7 +33,6 @@ package com.jme3.gde.core.errorreport;
 
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
-import javax.swing.JFrame;
 import org.openide.DialogDescriptor;
 import org.openide.DialogDisplayer;
 import org.openide.awt.ActionID;