feat(instrumentation): finial polish

pkg/api/dataproxy.go

@@ -17,8 +17,6 @@ import (
 	"github.com/grafana/grafana/pkg/util"
 )
 
-var i int = 0
-
 var dataProxyTransport = &http.Transport{
 	TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
 	Proxy:           http.ProxyFromEnvironment,