(core) Some cleanup: remove old unused modules.

Summary:
- Remove modules related to old login / profile that we don't plan to bring back.
- Remove old unused DocListModel.
- Remove ext* tests that have been skipped and don't work.
- Remove old ModalDialog, and switch its one remaining usage to the newer way.

Test Plan: All tests should pass, and as many as before.

Reviewers: paulfitz

Reviewed By: paulfitz

Differential Revision: https://phab.getgrist.com/D2668

app/client/models/DocListModel.js

@@ -1,118 +0,0 @@
-var koArray = require('../lib/koArray');
-var dispose = require('../lib/dispose');
-var _ = require('underscore');
-var BackboneEvents = require('backbone').Events;
-var {pageHasDocList} = require('app/common/urlUtils');
-
-/**
- * Constructor for DocListModel
- * @param {Object} comm: A map of server methods availble on this document.
- */
-function DocListModel(app) {
-  this.app = app;
-  this.comm = this.app.comm;
-  this.docs = koArray();
-  this.docInvites = koArray();
-
-  if (pageHasDocList()) {
-    this.listenTo(this.comm, 'docListAction', this.docListActionHandler);
-    this.listenTo(this.comm, 'receiveInvites', () => this.refreshDocList());
-
-    // Initialize the DocListModel
-    this.refreshDocList();
-  } else {
-    console.log("Page has no DocList support");
-  }
-}
-dispose.makeDisposable(DocListModel);
-_.extend(DocListModel.prototype, BackboneEvents);
-
-/**
- * Rebuilds DocListModel with a direct call to the server.
- */
-DocListModel.prototype.refreshDocList = function() {
-  return this.comm.getDocList()
-    .then(docListObj => {
-      this.docs.assign(docListObj.docs);
-      this.docInvites.assign(docListObj.docInvites);
-    })
-    .catch((err) => {
-      console.error('Failed to load DocListModel: %s', err);
-    });
-};
-
-/**
- * Updates the DocListModel docs and docInvites arrays in response to docListAction events
- * @param {Object} message: A docListAction message received from the server.
- */
-DocListModel.prototype.docListActionHandler = function(message) {
-  console.log('docListActionHandler message', message);
-  if (message && message.data) {
-    _.each(message.data.addDocs, this.addDoc, this);
-    _.each(message.data.removeDocs, this.removeDoc, this);
-    _.each(message.data.changeDocs, this.changeDoc, this);
-    _.each(message.data.addInvites, this.addInvite, this);
-    _.each(message.data.removeInvites, this.removeInvite, this);
-    // DocListModel can ignore rename events since renames also broadcast add/remove events.
-  } else {
-    console.error('Unrecognized message', message);
-  }
-};
-
-DocListModel.prototype._removeAtIndex = function(collection, index) {
-  collection.splice(index, 1);
-};
-
-DocListModel.prototype._removeItem = function(collection, name) {
-  var index = this._findItem(collection, name);
-  if (index !== -1) {
-    this._removeAtIndex(collection, index);
-  }
-};
-
-// Binary search is disabled in _.indexOf because the docs may not be sorted by name.
-DocListModel.prototype._findItem = function(collection, name) {
-  var matchIndex = _.indexOf(collection.all().map(item => item.name), name, false);
-  if (matchIndex === -1) {
-    console.error('DocListModel does not contain name:', name);
-  }
-  return matchIndex;
-};
-
-DocListModel.prototype.removeDoc = function(name) {
-  this._removeItem(this.docs, name);
-};
-
-// TODO: removeInvite is unused
-DocListModel.prototype.removeInvite = function(name) {
-  this._removeItem(this.docInvites, name);
-};
-
-DocListModel.prototype._addItem = function(collection, fileObj) {
-  var insertIndex = _.sortedIndex(collection.all(), fileObj, 'name');
-  this._addItemAtIndex(collection, insertIndex, fileObj);
-};
-
-DocListModel.prototype._addItemAtIndex = function(collection, index, fileObj) {
-  collection.splice(index, 0, fileObj);
-};
-
-DocListModel.prototype.addDoc = function(fileObj) {
-  this._addItem(this.docs, fileObj);
-};
-
-// TODO: addInvite is unused
-DocListModel.prototype.addInvite = function(fileObj) {
-  this._addItem(this.docInvites, fileObj);
-};
-
-// Called when the metadata for a doc changes.
-DocListModel.prototype.changeDoc = function(fileObj) {
-  let idx = this._findItem(this.docs, fileObj.name);
-  if (idx !== -1) {
-    this._removeAtIndex(this.docs, idx);
-    this._addItem(this.docs, fileObj);
-  }
-};
-
-module.exports = DocListModel;