async function remove(key) {
  try {
    const request = k8sModel.getClient('/api/v1/namespaces');
    const hexKey = Buffer.from(key).toString('hex');
    return await request.delete(`${GROUP_NAMESPACE}/secrets/${hexKey}`, {
      headers: {
        'Content-Type': 'application/json',
        Accept: 'application/json',
      },
    });
  } catch (error) {
    if (error.response) {
      throw error.response;
    } else {
      throw error;
    }
  }
}
@function Remove - Remove a group entry to kubernetes secrets.
@async
@param {string} key - Group name
@return {Promise<void>}