Remove credentials stanza until Vault secret is configured

The Codecov token secret does not exist yet. Prow fails to start the
step if credentials reference a missing secret, even with best_effort.
Remove until the Vault secret is set up; the script already handles
missing CODECOV_TOKEN by skipping upload.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: PillaiManish

ci-operator/config/openshift/secrets-store-csi-driver-operator/openshift-secrets-store-csi-driver-operator-main.yaml

@@ -189,10 +189,6 @@ tests:
         else
           echo "Warning: No coverage data found"
         fi
-      credentials:
-      - mount_path: /var/run/secrets/codecov
-        name: secrets-store-csi-driver-operator-codecov-token
-        namespace: test-credentials
       from: src
       resources:
         requests: