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/misc/ProjectCapabilitySelectionGroup.java
private static final String EMPTY_DESCRIPTION = "\n\n\n"; 
    private CapabilityRegistry registry;
    private Category[] initialCategories;
    private Capability[] initialCapabilities;
    private Capability[] disabledCapabilities;
    private boolean modified = false;
    private Text descriptionText;
    private CheckboxTableViewer checkboxViewer;
    private ICheckStateListener checkStateListener;
    private ArrayList visibleCapabilities = new ArrayList();
    private ArrayList checkedCapabilities = new ArrayList();
    private Collection disabledCaps;
    
    
    
    
    private HashMap dependents = new HashMap();
    
    
    private HashMap memberships = new HashMap();
    
    private Comparator categoryComparator = new Comparator() {
        private Collator collator = Collator.getInstance();
        public int compare(Object ob1, Object ob2) {
            Category c1 = (Category) ob1;
            Category c2 = (Category) ob2;
            return collator.compare(c1.getLabel(), c2.getLabel());
        }