Use select2 with no data source

I’m wondering whether there is a way to use select2 with no data source, just with the flag tags: true. In other words, I just want to use the free-typing tokenisation feature, no predefined options.
That would basically mean disabling the dropdown.
I tried preventing select2:opening event, but that would also prevent tokenisation of the input (which btw is unexpected and I’m not sure it is the behaviour you want to have)…

this is a very minimal example. In short, I just want to hide the dropdown:
https://jsfiddle.net/alfredopacino/89Lrpme7/3/

At the very least, it would be fine to hide the message “No results found”…