There are two ways to delete the Hub:
1. Press the Hub icon for 5 seconds; you will see a menu to uninstall the widget. Clicking on the same will uninstall the MotoHub widget.
2. Search for an application in your device by the name “Swish” and long press on the app for a few seconds, an 'Uninstall' option will pop up; click on it to complete the process.