merge appdb.js into apps.js

src/updatechecker.js

@@ -14,8 +14,7 @@ const apps = require('./apps.js'),
     debug = require('debug')('box:updatechecker'),
     notifications = require('./notifications.js'),
     paths = require('./paths.js'),
-    safe = require('safetydance'),
-    util = require('util');
+    safe = require('safetydance');
 
 function setUpdateInfo(state) {
     // appid -> update info { creationDate, manifest }
@@ -39,9 +38,7 @@ async function checkAppUpdates(options) {
     let state = getUpdateInfo();
     let newState = { };  // create new state so that old app ids are removed
 
-    const appsGetAllAsync = util.promisify(apps.getAll);
-
-    const result = await appsGetAllAsync();
+    const result = await apps.list();
 
     for (const app of result) {
         if (app.appStoreId === '') continue; // appStoreId can be '' for dev apps