rkatz stepping down from pt approvers

Author: Ricardo Katz

OWNERS_ALIASES

@@ -167,7 +167,6 @@ aliases:
     - edsoncelio
     - femrtnz
     - jcjesus
-    - rikatz
     - stormqueen1990
     - yagonobre
   sig-docs-pt-reviews: # PR reviews for Portugese content
@@ -176,7 +175,6 @@ aliases:
     - femrtnz
     - jcjesus
     - mrerlison
-    - rikatz
     - stormqueen1990
     - yagonobre
   sig-docs-vi-owners: # Admins for Vietnamese content