runelite-client: don't draw overlays on event dispatch thread

It is causing deadlocks as the client holds a lock on client in paint() at the time draw() is called, and the EDT then causes RSCanvas (which is the listener) to get triggered when the client draws onto the canvas, which goes back to client.paint() and deadlocks.

runelite-client/src/main/java/net/runelite/client/callback/Hooks.java

@@ -26,8 +26,6 @@ package net.runelite.client.callback;
 
 import java.awt.Graphics;
 import java.awt.image.BufferedImage;
-import java.lang.reflect.InvocationTargetException;
-import javax.swing.SwingUtilities;
 import net.runelite.api.ChatMessageType;
 import net.runelite.api.MenuAction;
 import net.runelite.api.Skill;
@@ -90,24 +88,11 @@ public class Hooks
 
 		OverlayRenderer renderer = runelite.getRenderer();
 
-		assert !SwingUtilities.isEventDispatchThread();
-
 		try
 		{
-			SwingUtilities.invokeAndWait(() ->
-			{
-
-				try
-				{
-					renderer.render(image);
-				}
-				catch (Exception ex)
-				{
-					logger.warn("Error during overlay rendering", ex);
-				}
-			});
+			renderer.render(image);
 		}
-		catch (InterruptedException | InvocationTargetException ex)
+		catch (Exception ex)
 		{
 			logger.warn("Error during overlay rendering", ex);
 		}