[css-conditional-5] Remove editors from acknowledgements

Author: frivoal

css-conditional-5/Overview.bs

@@ -1256,15 +1256,13 @@ Additions since Level 4</h3>
 	Chris Coyier,
 	Christopher Kirk-Nielsen,
 	David Herron,
-	Elika J. Etemad (fantasai),
 	Eric Portis,
 	Ethan Marcotte,
 	Geoff Graham,
 	Gregory Wild-Smith,
 	Ian Kilpatrick,
 	Jen Simmons,
 	Kenneth Rohde Christiansen,
-	L. David Baron,
 	Lea Verou,
 	Martin Auswöger,
 	Martine Dowden,