removed old example

Author: marciocloudflare

src/content/partials/magic-transit/tunnel-health/update-tunnel-health-checks-frequency.mdx

@@ -58,16 +58,6 @@ Below is an example of how to adjust tunnel health check frequency to `low`. Not
 	}}
 />
 
-```bash
-curl --request PUT \
-https://api.cloudflare.com/client/v4/accounts/{account_id}/magic/gre_tunnels/{tunnel_id} \
---header "X-Auth-Email: <EMAIL>" \
---header "X-Auth-Key: <API_KEY>" \
---header "Content-Type: application/json" \
---data '{
-  "health_check": {"rate":"low"}
-}'
-```
 
 </TabItem> </Tabs>