Remove redundant juju/errors (#1574)

Co-authored-by: Klepov Alex <aklepov@rutube.ru>

Author: xelavopelk

go.mod

@@ -15,7 +15,6 @@ require (
 	github.com/jackc/pgx/v5 v5.7.6
 	github.com/jcmturner/gofork v1.7.6
 	github.com/jcmturner/gokrb5/v8 v8.4.4
-	github.com/juju/errors v1.0.0
 	github.com/lib/pq v1.10.9
 	github.com/libp2p/go-reuseport v0.4.0
 	github.com/opentracing/opentracing-go v1.2.0

go.sum

@@ -117,8 +117,6 @@ github.com/jcmturner/gokrb5/v8 v8.4.4 h1:x1Sv4HaTpepFkXbt2IkL29DXRf8sOfZXo8eRKh6
 github.com/jcmturner/gokrb5/v8 v8.4.4/go.mod h1:1btQEpgT6k+unzCwX1KdWMEwPPkkgBtP+F6aCACiMrs=
 github.com/jcmturner/rpc/v2 v2.0.3 h1:7FXXj8Ti1IaVFpSAziCZWNzbNuZmnvw/i6CqLNdWfZY=
 github.com/jcmturner/rpc/v2 v2.0.3/go.mod h1:VUJYCIDm3PVOEHw8sgt091/20OJjskO/YJki3ELg/Hc=
-github.com/juju/errors v1.0.0 h1:yiq7kjCLll1BiaRuNY53MGI0+EQ3rF6GB+wvboZDefM=
-github.com/juju/errors v1.0.0/go.mod h1:B5x9thDqx0wIMH3+aLIMP9HjItInYWObRovoCFM5Qe8=
 github.com/jung-kurt/gofpdf v1.0.3-0.20190309125859-24315acbbda5/go.mod h1:7Id9E/uU8ce6rXgefFLlgrJj/GYY22cpxn+r32jIOes=
 github.com/kardianos/osext v0.0.0-20190222173326-2bc1f35cddc0 h1:iQTw/8FWTuc7uiaSepXwyf3o52HaUYcV+Tu66S3F5GA=
 github.com/kardianos/osext v0.0.0-20190222173326-2bc1f35cddc0/go.mod h1:1NbS8ALrpOvjt0rHPNLyCIeMtbizbir8U//inJ+zuB8=

router/qrouter/local.go

@@ -2,8 +2,10 @@ package qrouter
 
 import (
 	"context"
+	"fmt"
+
+	"sync/atomic"
 
-	"github.com/juju/errors"
 	"github.com/pg-sharding/lyx/lyx"
 	"github.com/pg-sharding/spqr/pkg/config"
 	"github.com/pg-sharding/spqr/pkg/meta"
@@ -13,7 +15,6 @@ import (
 	"github.com/pg-sharding/spqr/pkg/spqrlog"
 	"github.com/pg-sharding/spqr/router/cache"
 	"github.com/pg-sharding/spqr/router/plan"
-	"sync/atomic"
 )
 
 type LocalQrouter struct {
@@ -38,8 +39,7 @@ var _ QueryRouter = &LocalQrouter{}
 
 func NewLocalQrouter(shardMapping map[string]*config.Shard) (*LocalQrouter, error) {
 	if len(shardMapping) != 1 {
-		errmsg := "local router support only single-datashard routing"
-		err := errors.New(errmsg)
+		err := fmt.Errorf("local router support only single-datashard routing")
 		spqrlog.Zero.Error().Err(err).Msg("")
 		return nil, err
 	}