Deletes tags from an instance.

    @type instance: str
    @param instance: instance to delete tags from
    @type tags: list of str
    @param tags: tags to delete
    @type dry_run: bool
    @param dry_run: whether to perform a dry run

def DeleteInstanceTags(r, instance, tags, dry_run=False):
    """
    Deletes tags from an instance.

    @type instance: str
    @param instance: instance to delete tags from
    @type tags: list of str
    @param tags: tags to delete
    @type dry_run: bool
    @param dry_run: whether to perform a dry run
    """

    query = {
        "tag": tags,
        "dry-run": dry_run,
    }

    return r.request("delete", "/2/instances/%s/tags" % instance, query=query)