Remove Stephanie from the Velero slack

Signed-off-by: Carlisia <[email protected]>

Author: Carlisia

communication/slack-config/usergroups.yaml

@@ -52,7 +52,6 @@ usergroups:
       - ashish-amarnath
       - carlisia
       - nrb
-      - stephbman
       - zubron
 
   - name: youtube-admins

communication/slack-config/users.yaml

@@ -75,7 +75,6 @@ users:
   savitharaghunathan: UC8U2V3BM
   sethmccombs: U92LLUZ8A
   simplytunde: UAY1NBYHE
-  stephbman: U01283LTN93
   Sujay Pillai: UBW3N1VGW
   sumitranr: UCQN13L9H
   TaoBeier: UCLDV6MN1