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/RemoveCapabilityStep.java
for (int i = 0; i < natureIds.length; i++) {
                    Capability cap = reg.getCapabilityForNature(natureIds[i]);
                    if (cap != capability) {
                        msg.append("\n    "); 
                        msg.append(cap.getName());
                    }
                }
                details = NLS.bind(IDEWorkbenchMessages.RemoveCapabilityStep_defaultDescription2, capability.getName(), msg);
            }
        }
        return details;
    }
    /* (non-Javadoc)
     * Method declared on WizardStep.
     */
    public IWizard getWizard() {
        if (wizard == null) {
            wizard = capability.getUninstallWizard();
            if (wizard == null)
                wizard = new RemoveCapabilityWizard();
            if (wizard != null) {
                wizard.init(PlatformUI.getWorkbench(),
                        StructuredSelection.EMPTY, project, natureIds);
                wizard.addPages();
            }
        }
        return wizard;
    }
}