removed some warnings

src/main/java/com/ardublock/ui/OpenblocksFrame.java

@@ -178,7 +178,7 @@ public class OpenblocksFrame extends JFrame
 		simulateButton.setVisible(false); //hide on startUp
 		
 		JButton simulatorHelpButton = new JButton(uiMessageBundle.getString("ardublock.ui.simulatorHelp"));
-		ActionListener simulatorHelpButtonListener = new SimulatorHelpButtonListener(this, this, context);
+		ActionListener simulatorHelpButtonListener = new SimulatorHelpButtonListener(this);
 		simulatorHelpButton.addActionListener(simulatorHelpButtonListener);
 		//KeyStroke ctrlaKeyStroke = KeyStroke.getKeyStroke(KeyEvent.VK_A, ActionEvent.CTRL_MASK);
 		//simulateButton.registerKeyboardAction(simulateButtonListener, ctrlaKeyStroke, JComponent.WHEN_IN_FOCUSED_WINDOW);

src/main/java/com/ardublock/ui/listener/SaveDefaultButtonListener.java

@@ -2,7 +2,6 @@ package com.ardublock.ui.listener;
 
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
-import java.io.IOException;
 
 import com.ardublock.core.Context;
 import com.ardublock.ui.OpenblocksFrame;

src/main/java/com/ardublock/ui/listener/SaveImageButtonListener.java

@@ -2,10 +2,8 @@ package com.ardublock.ui.listener;
 
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
-import com.ardublock.core.Context;
 import com.ardublock.ui.OpenblocksFrame;
 
-import edu.mit.blocks.workspace.Workspace;
 
 public class SaveImageButtonListener implements ActionListener
 {

src/main/java/com/ardublock/ui/listener/SimulatorHelpButtonListener.java

 package com.ardublock.ui.listener;
 
-import java.awt.Toolkit;
-import java.awt.datatransfer.Clipboard;
-import java.awt.datatransfer.StringSelection;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.util.ResourceBundle;
 
 import javax.swing.ImageIcon;
-import javax.swing.JFrame;
-import javax.swing.JLabel;
 import javax.swing.JOptionPane;
 
-import com.ardublock.core.Context;
 import com.ardublock.ui.OpenblocksFrame;
 
-import edu.mit.blocks.controller.WorkspaceController;
-import edu.mit.blocks.workspace.Workspace;
 import tec.letsgoing.ardublock.simulator.view.GUI;
 
 public class SimulatorHelpButtonListener implements ActionListener
 {
-
-	private Context context;
-	private JFrame parentFrame;
 	private OpenblocksFrame openBlocksFrame;
 	private ResourceBundle uiMessageBundle;
 	
-	public SimulatorHelpButtonListener(JFrame frame, OpenblocksFrame obFrame, Context context)
+	public SimulatorHelpButtonListener(OpenblocksFrame obFrame)
 	{
-		this.parentFrame = frame;
 		this.openBlocksFrame=obFrame;
-		this.context = context;
-		Workspace workspace = context.getWorkspaceController().getWorkspace();
 		uiMessageBundle = ResourceBundle.getBundle("com/ardublock/block/ardublock");
 		
 	}