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The CSS Code mentioned on the other thread you replied to still works.
Here's a test form showing a Configurable List https://form.jotform.com/62696515815970 without the date icon showing.
These are the CSS codes used:
And this is how/where to place them:
Give it a try and if you're still not able to do it, give us the FORM URL/ID that you're working on so we can check the form itself. And if the form is embedded on a page/website, give us the URL of that page too.