Some failpoint are invalid

## Bug Report

Please answer these questions before submitting your issue. Thanks!

### 1. Minimal reproduce step (Required)

### 2. What did you expect to see? (Required)

### 3. What did you see instead (Required)

```
tidb/pkg/testkit/testkit.go:182:9: failpoint 'github.com/pingcap/tidb/pkg/planner/core/skipExtractor' not defined
tidb/br/pkg/restore/misc_test.go:119:22: failpoint 'github.com/pingcap/tidb/br/pkg/utils/set-attempt-to-one' not defined
tidb/pkg/ddl/ingest/integration_test.go:97:21: failpoint 'github.com/pingcap/tidb/pkg/ddl/mockCopSenderError' not defined
tidb/pkg/domain/domain_test.go:63:21: failpoint 'github.com/pingcap/tidb/pkg/domain/infosync/FailPlacement' not defined
tidb/pkg/domain/domain_test.go:96:21: failpoint 'github.com/pingcap/tidb/pkg/ddl/NoDDLDispatchLoop' not defined
tidb/pkg/executor/executor_failpoint_test.go:384:21: failpoint 'github.com/pingcap/tidb/pkg/executor/union/issue21441' not defined
tidb/pkg/executor/insert_test.go:38:2: failpoint 'github.com/pingcap/tidb/pkg/table/tblsession/forceWriteBinlog' not defined
tidb/pkg/executor/sortexec/sort_test.go:47:21: failpoint 'github.com/pingcap/tidb/pkg/executor/sortexec/testSortedRowContainerSpill' not defined
tidb/pkg/executor/sortexec/sort_test.go:110:21: failpoint 'github.com/pingcap/tidb/pkg/executor/sortexec/testSortedRowContainerSpill' not defined
tidb/pkg/executor/test/analyzetest/analyze_test.go:654:21: failpoint 'github.com/pingcap/tidb/pkg/executor/calcSampleRateByStorageCount' not defined
tidb/pkg/executor/test/cte/cte_test.go:72:21: failpoint 'github.com/pingcap/tidb/pkg/executor/sortexec/testSortedRowContainerSpill' not defined
tidb/pkg/planner/cardinality/selectivity_test.go:654:21: failpoint 'github.com/pingcap/tidb/pkg/statistics/table/mockQueryBytesMaxUint64' not defined
tidb/pkg/planner/core/casetest/planstats/plan_stats_test.go:321:21: failpoint 'github.com/pingcap/executor/assertSyncStatsFailed' not defined
tidb/pkg/server/conn_test.go:1087:21: failpoint 'github.com/pingcap/tidb/pkg/store/mockstore/unistore/BatchCopRpcErrtiflash0' not defined
tidb/pkg/server/conn_test.go:1123:21: failpoint 'github.com/pingcap/tidb/pkg/store/mockstore/unistore/BatchCopRpcErrtiflash0' not defined
tidb/pkg/server/handler/tests/http_handler_serial_test.go:253:21: failpoint 'github.com/pingcap/tidb/pkg/server/errGetRegionByIDEmpty' not defined
tidb/pkg/sessiontxn/txn_context_test.go:59:21: failpoint 'github.com/pingcap/tidb/pkg/session/assertTxnManagerInCachedPlanExec' not defined
tidb/pkg/statistics/histogram_test.go:439:2: failpoint 'github.com/pingcap/pkg/statistics/enableTopNNDV' not defined
tidb/pkg/store/batch_coprocessor_test.go:80:21: failpoint 'github.com/pingcap/tidb/pkg/store/mockstore/unistore/BatchCopRpcErrtiflash0' not defined
tidb/pkg/store/batch_coprocessor_test.go:84:21: failpoint 'github.com/pingcap/tidb/pkg/store/mockstore/unistore/BatchCopRpcErrtiflash0' not defined
tidb/pkg/store/batch_coprocessor_test.go:111:21: failpoint 'github.com/pingcap/tidb/pkg/store/mockstore/unistore/BatchCopRpcErrtiflash0' not defined
tidb/pkg/store/batch_coprocessor_test.go:115:21: failpoint 'github.com/pingcap/tidb/pkg/store/mockstore/unistore/BatchCopRpcErrtiflash1' not defined
tidb/pkg/store/gcworker/gc_worker_test.go:1443:21: failpoint 'github.com/pingcap/tidb/pkg/store/gcworker/gcDeletePlacementRuleCounter' not defined
tidb/tests/realtikvtest/addindextest3/ingest_test.go:445:21: failpoint 'github.com/pingcap/tidb/pkg/ddl/ingest/mockFlushError' not defined
tidb/tests/realtikvtest/pessimistictest/pessimistic_test.go:671:21: failpoint 'github.com/pingcap/tidb/pkg/executor/ExecStmtGetTsError' not defined
tidb/tests/realtikvtest/txntest/stale_read_test.go:1205:3: failpoint 'github.com/pingcap/tidb/exector/assertStmtCtxIsStaleness' not defined
```

There could be some misjudgments.

### 4. What is your TiDB version? (Required)