private void trim() {
        Iterator<Long> iterator = ids.iterator();
        while (iterator.hasNext() && ids.size() > MAX_SIZE) {
            iterator.next();
            iterator.remove();
        }
    }
Create a recent repositories cache for the given organization

@param context
@param organization
app/src/main/java/com/github/pockethub/android/ui/repo/RecentRepositories.java