Find and replace non-breaking hyphen

I have a document that I exported from a PDF file to an RTF and then edited it in LibreOffice Writer. Adobe Acrobat Pro exported a bunch of non-breaking hyphens that I want to replace with regular hyphens. I have been unable to find a way to do this other than the brute force method of searching by eye to find each one and replacing it by hand.

If I copy a non-breaking hyphen into a text editor I see that the character is ‘AD’ but I’ve tried all kind of ways to search for that and it doesn’t find it. I’ve tried copying the non-breaking hyphen and pasting it into the Find box in the Find & Replace dialog. I’ve tried inserting it into the Find & Replace dialog using Ctrl+Shift±. I’ve tried the regular expression \U00AD. Nothing seems to work. Any ideas?

I’m using LibreOffice Writer version on Windows 7.

The AltSearch extension will search for what it calls Custom hyphens (\x00AD).
Get it here:

Just replace with nothing.

Thanks, I’ll check it out.