diff --git a/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/help/HelpBrowser.java b/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/help/HelpBrowser.java
index bdd6fa8..d962fbb 100644
--- a/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/help/HelpBrowser.java
+++ b/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/help/HelpBrowser.java
@@ -3,7 +3,6 @@ package com.minres.scviewer.e4.application.parts.help;
 import java.io.File;
 
 import javax.annotation.PostConstruct;
-import javax.annotation.PreDestroy;
 import javax.inject.Inject;
 
 import org.eclipse.e4.core.contexts.IEclipseContext;
@@ -24,7 +23,6 @@ import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Listener;
 import org.eclipse.swt.widgets.ProgressBar;
-import org.eclipse.swt.widgets.Shell;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.swt.widgets.ToolBar;
 import org.eclipse.swt.widgets.ToolItem;