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
IBundleGroup[] bundleGroups = providers[i].getBundleGroups();
                for (int j = 0; j < bundleGroups.length; ++j)
                    infos.add(new AboutInfo(bundleGroups[j]));
            }
        return (AboutInfo[]) infos.toArray(new AboutInfo[infos.size()]);
    }
    /**
     * Returns the about information of the primary feature.
     * 
     * @return info about the primary feature, or <code>null</code> if there 
     * is no primary feature or if this information is unavailable
     */
    public AboutInfo getPrimaryInfo() {
        IProduct product = Platform.getProduct();
        return product == null ? null : new AboutInfo(product);
    }
	
	/**
	 * Get the workbench image with the given path relative to
	 * ICON_PATH.
	 * @param relativePath
	 * @return ImageDescriptor
	 */
	public static ImageDescriptor getIDEImageDescriptor(String relativePath){
		return imageDescriptorFromPlugin(IDE_WORKBENCH, ICONS_PATH + relativePath);
	}
	
	
}