KEP-2831: kubelet tracing GA in 1.34

update documentation to remove references to Feature
Gates and to reflect the current state.

Signed-off-by: Francesco Romani <fromani@redhat.com>

Author: ffromani

content/en/docs/concepts/cluster-administration/system-traces.md

@@ -106,8 +106,6 @@ This is an example snippet of a kubelet config that records spans for 1 in 10000
 ```yaml
 apiVersion: kubelet.config.k8s.io/v1beta1
 kind: KubeletConfiguration
-featureGates:
-  KubeletTracing: true
 tracing:
   # default value
   #endpoint: localhost:4317

content/en/docs/reference/command-line-tools-reference/feature-gates/KubeletTracing.md

@@ -13,6 +13,10 @@ stages:
   - stage: beta
     defaultValue: true
     fromVersion: "1.27"
+    toVersion: "1.33"
+  - stage: stable
+    defaultValue: true
+    fromVersion: "1.34"
 ---
 Add support for distributed tracing in the kubelet.
 When enabled, kubelet CRI interface and authenticated http servers are instrumented to generate