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/dialogs/UpdateProjectCapabilityWizard.java
Iterator it = ids.iterator();
                while (it.hasNext()) {
                    String id = (String) it.next();
                    if (!results.contains(id))
                        results.add(id);
                }
            }
        }
        String[] ids = new String[results.size()];
        results.toArray(ids);
        return ids;
    }
    /* (non-Javadoc)
     * Method declared on IProjectProvider.
     */
    public IProject getProject() {
        return project;
    }
    /* (non-Javadoc)
     * Method declared on MultiStepWizard.
     */
    protected String getReviewPageTitle() {
        return IDEWorkbenchMessages.UpdateProjectCapabilityWizard_title;
    }
    /* (non-Javadoc)
     * Method declared on MultiStepWizard.
     */
    protected String getReviewPageDescription() {
        return IDEWorkbenchMessages.WizardProjectReviewPage_description;
    }