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diff --git a/contexts/data/lib/closure-library/closure/goog/db/db.js b/contexts/data/lib/closure-library/closure/goog/db/db.js
deleted file mode 100644
index adb0ba7..0000000
--- a/contexts/data/lib/closure-library/closure/goog/db/db.js
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright 2011 The Closure Library Authors. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS-IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-/**
- * @fileoverview Wrappers for the HTML5 IndexedDB. The wrappers export nearly
- * the same interface as the standard API, but return goog.async.Deferred
- * objects instead of request objects and use Closure events. The wrapper works
- * and has been tested on Chrome version 18+. Though they should work in theory,
- * the wrapper tests fail in strange, non-deterministic ways on Firefox 6,
- * unfortunately.
- *
- * Example usage:
- *
- *  <code>
- *  goog.db.openDatabase('mydb').addCallback(function(db) {
- *    return db.setVersion('1.0').addCallback(function(tx) {
- *      db.createObjectStore('mystore');
- *      // restart to see our structure changes
- *      return goog.db.openDatabase('mydb');
- *    });
- *  }).addCallback(function(db) {
- *    var putTx = db.createTransaction(
- *        [],
- *        goog.db.Transaction.TransactionMode.READ_WRITE);
- *    var store = putTx.objectStore('mystore');
- *    store.put('value', 'key');
- *    goog.listen(putTx, goog.db.Transaction.EventTypes.COMPLETE, function() {
- *      var getTx = db.createTransaction([]);
- *      var request = getTx.objectStore('mystore').get('key');
- *      request.addCallback(function(result) {
- *        ...
- *      });
- *  });
- *  </code>
- *
- */
-
-
-goog.provide('goog.db');
-
-goog.require('goog.async.Deferred');
-goog.require('goog.db.Error');
-goog.require('goog.db.IndexedDb');
-
-
-/**
- * Opens a database connection and wraps it.
- *
- * @param {string} name The name of the database to open.
- * @return {!goog.async.Deferred} The deferred database object.
- */
-goog.db.openDatabase = function(name) {
-  var indexedDb = goog.global.indexedDB || goog.global.mozIndexedDB ||
-      goog.global.webkitIndexedDB || goog.global.moz_indexedDB;
-
-  var d = new goog.async.Deferred();
-  var openRequest = indexedDb.open(name);
-  openRequest.onsuccess = function(ev) {
-    var db = new goog.db.IndexedDb(ev.target.result);
-    d.callback(db);
-  };
-  openRequest.onerror = function(ev) {
-    var msg = 'opening database ' + name;
-    d.errback(new goog.db.Error(ev.target.code, msg));
-  };
-  return d;
-};