Merge pull request kubernetes#93850 from nikhita/cleanup-network-owners

sig-network: remove inactive members from OWNERS_ALIASES

Author: k8s-ci-robot

OWNERS_ALIASES

@@ -271,7 +271,6 @@ aliases:
     - freehan
     - johnbelamaric
     - mrhohn
-    - nicksardo
     - thockin
   sig-network-reviewers:
     - andrewsykim
@@ -285,7 +284,6 @@ aliases:
     - johnbelamaric
     - m1093782566
     - mrhohn
-    - nicksardo
     - rramkumar1
     - thockin
   sig-apps-approvers: