We have the same issue (we use Unitheme) and the way I "solved" this problem was to untick the "show on storefront" checkbox of the description in Administration / profile fields / Vendor information. This gets rid of the description in both places.
In order to still have a description on the vendor page, I simply added the "vendor information" block underneath the main content in Design/Layouts of the Vendor(companies.view) layout page.
Not the most streamlined version, but since we have changed the vendor page with additional buttons to link terms and conditions etc., it works really well.
We have the same issue (we use Unitheme) and the way I "solved" this problem was to untick the "show on storefront" checkbox of the description in Administration / profile fields / Vendor information. This gets rid of the description in both places.
There you go! Thanks! Did the trick for me. Indeed we use Youpi!
Note that in this case fields will hidden from the update vendor profiles/ become a vendor pages
Thankfully there appears to be a storefront checkbox, which did what I required.
The final problem I'm facing is that we are using Packing Slips to provide to our drivers to know where to pick up/drop off items to. So that will need to be showing the vendor address (but pretty much nowhere else).