Bug report

When the data source of the Kendo UI ScrollView is configured to accept a function, two requests are sent. 

Reproduction of the problem

1. Set the read of the data source to function.

2. Set server paging to false (by default is false).

Dojo for reference:

https://dojo.telerik.com/ePIpejar

Environment

* **Kendo UI version:** 2019.3.1023
* **jQuery version:** 1.12.4
* **Browser:** [all]