js/libs/ember-data.js
function(store, type, record) {
    var id = get(record, 'id');

    return this.ajax(this.buildURL(type.typeKey, id), "DELETE");
  }
function(store, type, record) {
    var id = get(record, 'id');

    return this.ajax(this.buildURL(type.typeKey, id), "DELETE");
  }
Called by the store when a record is deleted.

The `deleteRecord` method  makes an Ajax (HTTP DELETE) request to a URL computed by `buildURL`.

@method deleteRecord
@param {DS.Store} store
@param {subclass of DS.Model} type
@param {DS.Model} record
@returns {Promise} promise