I would like to disable hyperlinks inside code cells because there are too much of them (most lines link to a new object or method) and it takes over the highlighting, but still keep intersphinx for links from "text" cells

There seem to be one option for this stuff: reference_url which is a dictionary to add links to module inventories
unfortunately setting this entry to None for the corresponding modules does not void the intersphinx settings, neither setting invalid links