Revert "Update humans.txt for Steve Ford's last day"

This reverts commit 46563d3.

public/humans.txt

@@ -1,10 +1,2 @@
 GOV.UK is built by a team at the Government Digital Service (with thanks to Martha!) in London,
-Bristol and Manchester.  If you'd like to join us, see https://gdscareers.gov.uk/
-
-Today we're saying goodbye to Stephen Ford, one of our Senior Site Reliability
-Engineers. Stephen has worked at GDS since 2015 and during his time with us
-has been instrumental in keeping GOV.UK available and secure. He's also a great
-human being, and has been a positive and supportive influence on so many of us.
-
-Thank you Stephen for all the work you've done and all the support
-you've given us. Good luck, we'll miss you!
+Bristol and Manchester.  If you'd like to join us, see https://gdscareers.gov.uk/