*: fix go mod tidy (#4110)

Author: lidezhu

coordinator/coordinator_test.go

@@ -44,86 +44,18 @@ import (
 	"github.com/pingcap/ticdc/server/watcher"
 	"github.com/stretchr/testify/require"
 	pd "github.com/tikv/pd/client"
-	pdgc "github.com/tikv/pd/client/clients/gc"
 	"go.uber.org/zap"
 	"google.golang.org/grpc"
 )
 
 type mockPdClient struct {
 	pd.Client
-	mu       sync.Mutex
-	gcClient map[uint32]*mockGCStatesClient
 }
 
 func (m *mockPdClient) UpdateServiceGCSafePoint(ctx context.Context, serviceID string, ttl int64, safePoint uint64) (uint64, error) {
 	return safePoint, nil
 }
 
-func (m *mockPdClient) GetGCStatesClient(keyspaceID uint32) pdgc.GCStatesClient {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-
-	if m.gcClient == nil {
-		m.gcClient = make(map[uint32]*mockGCStatesClient)
-	}
-	if cli, ok := m.gcClient[keyspaceID]; ok {
-		return cli
-	}
-	cli := newMockGCStatesClient(keyspaceID)
-	m.gcClient[keyspaceID] = cli
-	return cli
-}
-
-type mockGCStatesClient struct {
-	keyspaceID uint32
-
-	mu       sync.Mutex
-	barriers map[string]*pdgc.GCBarrierInfo
-}
-
-func newMockGCStatesClient(keyspaceID uint32) *mockGCStatesClient {
-	return &mockGCStatesClient{
-		keyspaceID: keyspaceID,
-		barriers:   make(map[string]*pdgc.GCBarrierInfo),
-	}
-}
-
-func (c *mockGCStatesClient) SetGCBarrier(ctx context.Context, barrierID string, barrierTS uint64, ttl time.Duration) (*pdgc.GCBarrierInfo, error) {
-	c.mu.Lock()
-	defer c.mu.Unlock()
-
-	info := pdgc.NewGCBarrierInfo(barrierID, barrierTS, ttl, time.Now())
-	c.barriers[barrierID] = info
-	return info, nil
-}
-
-func (c *mockGCStatesClient) DeleteGCBarrier(ctx context.Context, barrierID string) (*pdgc.GCBarrierInfo, error) {
-	c.mu.Lock()
-	defer c.mu.Unlock()
-
-	info, ok := c.barriers[barrierID]
-	if ok {
-		delete(c.barriers, barrierID)
-	}
-	return info, nil
-}
-
-func (c *mockGCStatesClient) GetGCState(ctx context.Context) (pdgc.GCState, error) {
-	c.mu.Lock()
-	defer c.mu.Unlock()
-
-	barriers := make([]*pdgc.GCBarrierInfo, 0, len(c.barriers))
-	for _, info := range c.barriers {
-		barriers = append(barriers, info)
-	}
-	return pdgc.GCState{
-		KeyspaceID:   c.keyspaceID,
-		TxnSafePoint: 0,
-		GCSafePoint:  0,
-		GCBarriers:   barriers,
-	}, nil
-}
-
 type mockMaintainerManager struct {
 	mc                 messaging.MessageCenter
 	msgCh              chan *messaging.TargetMessage

go.sum

@@ -1707,8 +1707,6 @@ github.com/pingcap/tidb-dashboard v0.0.0-20250928152019-e111aaee93f4 h1:cl2GYJ9e
 github.com/pingcap/tidb-dashboard v0.0.0-20250928152019-e111aaee93f4/go.mod h1:iwv1jXwX18IKvkHvQI9JgQ+WnLPFc5DpIGRfM+mlYKk=
 github.com/pingcap/tidb/pkg/parser v0.0.0-20241120103608-82376c7732c1 h1:kXonivqohILI2m1cB9xlTpMGUF7flZgU7qFoZn891Ws=
 github.com/pingcap/tidb/pkg/parser v0.0.0-20241120103608-82376c7732c1/go.mod h1:Hju1TEWZvrctQKbztTRwXH7rd41Yq0Pgmq4PrEKcq7o=
-github.com/pingcap/tiflow v0.0.0-20251216025638-62c10c0907dc h1:ceqF/CQbXQHagH2zafoJVA3ygqZbB4toDZyPxTByzIg=
-github.com/pingcap/tiflow v0.0.0-20251216025638-62c10c0907dc/go.mod h1:IkKs8qcuqIfxCPFrtYvUx5YmraaLTsIIoD5D5p+xkaE=
 github.com/pingcap/tiflow v0.0.0-20251226072601-0cb0aaf25061 h1:bzqYZY2vxn6kpOWCGWyXMwM8DcBwLqaNLw/UnZp2dGM=
 github.com/pingcap/tiflow v0.0.0-20251226072601-0cb0aaf25061/go.mod h1:IkKs8qcuqIfxCPFrtYvUx5YmraaLTsIIoD5D5p+xkaE=
 github.com/pingcap/tipb v0.0.0-20241022082558-0607513e7fa4 h1:wvaUybJT0fUReCDcFtV3CEvMuI9iu+G7IW72tbSlil4=