Duplicate code

[Kim-SeongCheol]

I think that there is duplicate codes in _labels_inertia_precompute_dense function.
initial_assignment function and below for loop is doing same thing.

labels, mindist = initial_assignment(labels, mindist, n_samples, all_distances, max_cluster_size)
all_points = np.arange(n_samples)

for point in all_points:
    for point_dist in get_best_point_distances(point, all_distances):
        cluster_id, point_dist = point_dist
        # initial assignment
         if not is_cluster_full(cluster_id, max_cluster_size, labels):
            labels[point] = cluster_id
            mindist[point] = point_dist
            break

Following code is initial_assignment function.

def initial_assignment(labels, mindist, n_samples, all_distances, max_cluster_size):
    """Initial assignment of labels and mindist"""
    all_points = np.arange(n_samples)
    for point in all_points:
        for point_dist in get_best_point_distances(point, all_distances):
            cluster_id, point_dist = point_dist
            # initial assignment
            if not is_cluster_full(cluster_id, max_cluster_size, labels):
                labels[point] = cluster_id
                mindist[point] = point_dist
                break
    return labels, mindist