When did this happen? I highly doubt it was for a title eliminator. Doesn't sound like Chisora to avoid anyone, so I can only assume he did it because Hrgovic didn't feel relevant enough and wasn't offering enough cash. Chisora wants big names and big fighters. He's a fans favourite. I don't think you can accuse Chisora of ducking anyone considering all the big fighters he's already fought that would slaughter hrgovic.
Ridiculous that this pair are in any kind of final for any of the plastic belts. Neither of these lumps have beaten any opponent of any use. Usyk and Fury are light years above the rest.