Bug 126779 [IDE] Removed deprecated project capabilities API and implementation
It was created then deprecated before 2.0 shipped. As has never been API and we don't use it we should delete it.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/IDEWorkbenchPlugin.java
import org.eclipse.swt.custom.BusyIndicator;
import org.eclipse.ui.internal.ide.registry.CapabilityRegistry;
import org.eclipse.ui.internal.ide.registry.MarkerImageProviderRegistry;
import org.eclipse.ui.internal.ide.registry.ProjectImageRegistry;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.Bundle;
/**
 * This internal class represents the top of the IDE workbench.
 *
 * This class is responsible for tracking various registries
 * font, preference, graphics, dialog store.
 *
 * This class is explicitly referenced by the 
 * IDE workbench plug-in's  "plugin.xml"
 * 
 * @since 3.0
 */
public class IDEWorkbenchPlugin extends AbstractUIPlugin {
    
    private static IDEWorkbenchPlugin inst;
    
    
    public static boolean DEBUG = false;
    /**
     * The IDE workbench plugin ID.
     */
    public static final String IDE_WORKBENCH = "org.eclipse.ui.ide"; 
    /**
     * The ID of the default text editor.
     * This must correspond to EditorsUI.DEFAULT_TEXT_EDITOR_ID.