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/ProjectCapabilityPropertyPage.java
getShell(),
                            IDEWorkbenchMessages.ProjectCapabilityPropertyPage_errorTitle,
                            IDEWorkbenchMessages.ProjectCapabilityPropertyPage_internalError,
                            e.getStatus());
            return true;
        }
        
        ArrayList keepIds = new ArrayList();
        ArrayList removeCaps = new ArrayList();
        for (int i = 0; i < natureIds.length; i++) {
            boolean isRemoved = true;
            String id = natureIds[i];
            for (int j = 0; j < caps.length; j++) {
                if (id.equals(caps[j].getNatureId())) {
                    keepIds.add(id);
                    isRemoved = false;
                    break;
                }
            }
            if (isRemoved)
                removeCaps.add(reg.getCapabilityForNature(id));
        }
        
        ArrayList newCaps = new ArrayList();
        for (int i = 0; i < caps.length; i++) {
            boolean isNew = true;
            Capability cap = caps[i];
            for (int j = 0; j < natureIds.length; j++) {
                if (natureIds[j].equals(cap.getNatureId())) {
                    isNew = false;