Update serviceslugs.txt

Podnews will never set its own slug
2020-10-11 19:57:01 +10:00 · 2020-10-11 19:57:01 +10:00 · 82a5d942d3
commit 82a5d942d3
--- a/serviceslugs.txt
+++ b/serviceslugs.txt
@ -17,7 +17,6 @@ spotify
 amazon
 bitcoin
 paypal
-podnews
 twitter
 mastodon
-slack
+slack