Indexed DB: Remove vendor prefix removal from tests

LayoutTests/storage/indexeddb/mozilla/object-store-inline-autoincrement-key-added-on-put-expected.txt

 Test IndexedDB adding an autoincremented key and retrieving it successfully
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
 
 
-indexedDB = self.indexedDB || self.webkitIndexedDB || self.mozIndexedDB || self.msIndexedDB || self.OIndexedDB;
-
 dbname = "object-store-inline-autoincrement-key-added-on-put.html"
 indexedDB.deleteDatabase(dbname)
 indexedDB.open(dbname)
 test = {
         name: 'inline key; key generator',
         autoIncrement: true,
         storedObject: { name: 'Lincoln' },
         keyName: 'id',
     };
 objectStore = db.createObjectStore(test.name, { keyPath: test.keyName, autoIncrement: test.autoIncrement });
 request = objectStore.add(test.storedObject);
 id = event.target.result;
 request = objectStore.get(id);
 PASS event.target.result.name is test.storedObject.name
 PASS event.target.result.id is id
 PASS successfullyParsed is true
 
 TEST COMPLETE