Remove the turbo window registration in the app.js

Author: tonysm

stubs/resources/js/app.js

@@ -2,6 +2,4 @@ import './bootstrap';
 import './elements/turbo-echo-stream-tag';
 //=inject-stimulus
 //=inject-alpine
-import Turbo from './libs/turbo';
-
-window.Turbo = Turbo;
+import './libs/turbo';