Chore: Remove the old log format (#51526)

* remove the old log format

* fix CI

Co-authored-by: Emil Tullstedt <emil.tullstedt@grafana.com>

pkg/infra/tracing/opentelemetry_tracing.go

@@ -5,8 +5,8 @@ import (
 	"net/http"
 	"time"
 
+	"github.com/go-kit/log/level"
 	"github.com/grafana/grafana/pkg/infra/log"
-	"github.com/grafana/grafana/pkg/infra/log/level"
 	"github.com/grafana/grafana/pkg/setting"
 	"go.etcd.io/etcd/api/v3/version"
 	jaegerpropagator "go.opentelemetry.io/contrib/propagators/jaeger"