Remove ailaising this in music

src/controllers/music/musicplaylists.js

@@ -69,20 +69,19 @@ import loading from 'loading';
             });
         }
 
-        const self = this;
         const data = {};
 
-        self.getCurrentViewStyle = function () {
+        this.getCurrentViewStyle = function () {
             return getPageData().view;
         };
 
         let promise;
 
-        self.preRender = function () {
+        this.preRender = function () {
             promise = getPromise();
         };
 
-        self.renderTab = function () {
+        this.renderTab = function () {
             reloadItems(tabContent, promise);
         };
     }