Remove nosiy "inflight" requests log entries (#6074)

We have enough metrics now (queue time, queue length and metrics.go statistics)
that makes these log entries obselete.

Signed-off-by: Kaviraj <kavirajkanagaraj@gmail.com>

pkg/querier/worker/scheduler_processor.go

@@ -22,8 +22,6 @@ import (
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/health/grpc_health_v1"
 
-	"github.com/grafana/dskit/tenant"
-
 	"github.com/grafana/loki/pkg/lokifrontend/frontend/v2/frontendv2pb"
 	querier_stats "github.com/grafana/loki/pkg/querier/stats"
 	"github.com/grafana/loki/pkg/scheduler/schedulerpb"
@@ -129,15 +127,11 @@ func (sp *schedulerProcessor) querierLoop(c schedulerpb.SchedulerForQuerier_Quer
 				logger = util_log.WithContext(ctx, sp.log)
 			)
 
-			start := time.Now()
-			tenant, _ := tenant.TenantID(ctx)
 			sp.metrics.inflightRequests.Inc()
-			level.Debug(logger).Log("msg", "tracking inflight request", "tenant", tenant, "op", "enqueue")
 
 			sp.runRequest(ctx, logger, request.QueryID, request.FrontendAddress, request.StatsEnabled, request.HttpRequest)
 
 			sp.metrics.inflightRequests.Dec()
-			level.Debug(logger).Log("msg", "tracking inflight request", "tenant", tenant, "op", "dequeue", "duration", time.Since(start))
 
 			// Report back to scheduler that processing of the query has finished.
 			if err := c.Send(&schedulerpb.QuerierToScheduler{}); err != nil {