Can i delete standard Adobe's Script from editor?

Hello

I put a around 60 drop down fields in my_subform in my_form, well.

Now, the requirements got changed, hence i need to change all of them into a TEXT FIELDs, so instead of deleting all drop downs and placing again 60 new text fields, my idea is as below,

1) Just change the OBJECT TYPE from drop down to a text field in object tab by just selecting the text field entry

2) As TEXT FIELDs don't have any standard Adobe's inbuilt Scripts (either JS or FormCalc), i will delete all the drop down's associated stanadrd Adobe's JS (example, Pre-Open event JS) in the editor

Pls. let me know,

1 - is it OK? i mean, is it safe?

2 - any other poiints i need to consider while am doing my approach?

Thank you