Remove CentOS Stream 9 job from master

Because Python 3.9 support is being removed, the latest code may no
longer run in CentOS Stream 9. Remove the CentOS jobs until CentOS
Stream 10 jobs are prepared.

Change-Id: I7c954418a01af221686d369921aee89781cd4341

.zuul.yaml

@@ -264,8 +264,6 @@
         - telemetry-dsvm-integration-2024-1
         - telemetry-dsvm-integration-2024-2
         - telemetry-dsvm-integration-ipv6-only
-        - telemetry-dsvm-integration-centos-9s
-        - telemetry-dsvm-integration-centos-9s-fips
     gate:
       jobs:
         - telemetry-dsvm-integration