def remove_dontcare(ann_info):
    """Remove annotations that do not need to be cared.

    Args:
        ann_info (dict): Dict of annotation infos. The ``'DontCare'``
            annotations will be removed according to ann_file['name'].

    Returns:
        dict: Annotations after filtering.
    """
    img_filtered_annotations = {}
    relevant_annotation_indices = [
        i for i, x in enumerate(ann_info['name']) if x != 'DontCare'
    ]
    for key in ann_info.keys():
        img_filtered_annotations[key] = (
            ann_info[key][relevant_annotation_indices])
    return img_filtered_annotations