CI failed because ttl-enable TiKV cluster cannot support TxnKV

[marsishandsome]

This PR breaks compatibility tikv/tikv#10800.

https://ci.pingcap.net/blue/organizations/jenkins/tikv-client-java_ghpr_integration_test/detail/tikv-client-java_ghpr_integration_test/161/pipeline/

org.tikv.common.exception.KeyException: abort: "Error(Other(\"[src/storage/mod.rs:940]: can\'t sched txn cmd(prewrite) with TTL enabled\"))"

[2021-09-02T05:45:57.290Z] 

[2021-09-02T05:45:57.290Z] 	at org.tikv.common.region.RegionStoreClient.isPrewriteSuccess(RegionStoreClient.java:449)

[2021-09-02T05:45:57.290Z] 	at org.tikv.common.region.RegionStoreClient.prewrite(RegionStoreClient.java:414)

[2021-09-02T05:45:57.290Z] 	at org.tikv.txn.TXNTest.prewrite(TXNTest.java:81)

[2021-09-02T05:45:57.290Z] 	at org.tikv.txn.TXNTest.prewriteString(TXNTest.java:69)

[2021-09-02T05:45:57.290Z] 	at org.tikv.txn.TXNTest.putKV(TXNTest.java:62)

[2021-09-02T05:45:57.290Z] 	at org.tikv.txn.TXNTest.putKV(TXNTest.java:51)

[2021-09-02T05:45:57.290Z] 	at org.tikv.txn.ReplicaReadTest.doTest(ReplicaReadTest.java:67)

[2021-09-02T05:45:57.290Z] 	at org.tikv.txn.ReplicaReadTest.leadAndFollowerReadTest(ReplicaReadTest.java:35)

revert this PR #271 after this issue is fixed