Removed defunct Covid-19 related websites

[RandomGuy48]

Removed

• https://nssac.bii.virginia.edu/covid-19/dashboard/ (404 Not Found)
• https://google.org/crisisresponse/covid19-map (Discontinued: https://web.archive.org/web/20210712054031/google.org/crisisresponse/covid19-map)
• https://www.bing.com/covid (Discontinued: https://web.archive.org/web/20230414050847/https://www.bing.com/covid)
• https://www.cdc.gov/coronavirus/2019-ncov/cases-updates/world-map.html (Page Not Found)

Updated

• https://gisanddata.maps.arcgis.com/apps/opsdashboard/index.html#/bda7594740fd40299423467b48e9ecf6 => https://gisanddata.maps.arcgis.com/apps/dashboards/bda7594740fd40299423467b48e9ecf6
• https://www.projectbaseline.com/study/covid-19/ => https://www.projectbaseline.com/studies/covid-research/
• https://en.wikipedia.org/wiki/2019%E2%80%9320_coronavirus_pandemic => https://en.wikipedia.org/wiki/COVID-19_pandemic
• http://www.euro.who.int/en/health-topics/health-emergencies/coronavirus-covid-19 => https://www.who.int/europe/emergencies/situations/covid-19