Remove outdated documentation site
And old version of the documentation site was found and caused some confusion: https://davincidocs.web.cern.ch/configuration/davinci_configuration.html#how-to-run-davinci-with-gaudirun-py
Should it be removed?
Reported at https://mattermost.web.cern.ch/lhcb/pl/anfqtayx87r4feoortbkaypjzc