Removed ARK entry from README and deleted ark.md profile due to broken careers link (404) (#1984)

Author: dougaitken

README.md

@@ -67,7 +67,6 @@ Name | Website | Region
 [Appstractor Corporation](/company-profiles/appstractor.md) | https://www.appstractor.com/ | USA, UK, Israel
 [Appwrite](/company-profiles/appwrite.md) | https://appwrite.io | Worldwide
 [Argyle](/company-profiles/argyle.md) | https://argyle.com/ | Worldwide
-[ARK](/company-profiles/ark.md) | https://www.ark.io/careers | Worldwide
 [Arkency](/company-profiles/arkency.md) | https://arkency.com/ | Worldwide
 [Art & Logic](/company-profiles/art-and-logic.md) | https://artandlogic.com | USA, Canada
 [Artefactual Systems](/company-profiles/artefactual.md) | https://www.artefactual.com | UTC-8 to UTC+2