It isn't removed... it is just less prominently written.
On
https://travel.gc.ca/travelling/advisories it still states "avoid all cruise ship travel outside of Canada". They have made it a bullet point now instead of its own highlighted colourful section that was easy to read and hard to miss. Now you have to "read the fine print" at the top of the page carefully to see it.
Also on
https://travel.gc.ca/travelling/publications/advice-for-cruise-travellers it still states "Avoid all travel on cruise ships outside Canada due to COVID-19." On that page it is at the top and is highlighted out with its own section, bold, colours, etc.