sql: do not set sqlstats knobs

This was added in 2fad679 because we
called CreateTestServerParams in other tests. That is no longer the case
as of 5adea01, so I don't think we need
that.

Release note: None

Author: yuzefovich

pkg/sql/server_params_test.go

@@ -9,16 +9,13 @@ import (
 	"github.com/cockroachdb/cockroach/pkg/base"
 	"github.com/cockroachdb/cockroach/pkg/kv/kvserver"
 	"github.com/cockroachdb/cockroach/pkg/kv/kvserver/kvserverbase"
-	"github.com/cockroachdb/cockroach/pkg/sql/sqlstats"
 	"github.com/cockroachdb/cockroach/pkg/sql/tests"
 )
 
 // createTestServerParams creates a set of params suitable for SQL tests.
 func createTestServerParams() base.TestServerArgs {
 	return base.TestServerArgs{
-		Knobs: base.TestingKnobs{
-			SQLStatsKnobs: sqlstats.CreateTestingKnobs(),
-		},
+		Knobs: base.TestingKnobs{},
 	}
 }