chore: remove troubleshooting codeowners (supabase#37697)

Code ownership was temporary while ironing out problems with sync
workflow. It seems more stable now, so I'm removing codeownership to
make sure people aren't blocked on troubleshooting updates while I'm
away.

Author: charislam

.github/CODEOWNERS

@@ -5,9 +5,6 @@
 
 /apps/studio/ @supabase/Dashboard
 
-# temporary until we've ironed out all the problems with sync workflow
-/apps/docs/content/troubleshooting/ @charislam
-
 /apps/www/ @supabase/marketing
 /apps/www/public/images/blog @supabase/marketing
 /apps/www/lib/redirects.js