What problems maybe happen if I remove “wp-” prefix from wordpress folders and files?

I want to hide wordpress signs from my site. So I don’t want other people know that I built the website via WordPress. So I decided to remove wp- prefixes from all wordpress folders and files. And I also removed wp- prefixes from file contents with Notepad++. So my question is what problems maybe happen if I removed wp- prefixes ?

Thanks in advance.

Editing core is extremely bad practice. At best you will break updates, at worst random thing would be completely broken all over.

See Steps to Take to Hide the Fact a Site is Using WordPress? for better alternatives.