firebase remove entries based on child values

return firebase.database().ref('/users/' + myUserId + '/starred_users/')
    .orderByChild('starUserData').equalTo(starUserData)
  .once("value", function (snapshot) {
    // snapshot : { "#%TY#T#": { "starUserData": starUserData } }
    snapshot.forEach(function (child) {
        child.ref.remove()
    })
  })