tikv: eliminate unnecessary pessimistic rollback (#12561)
tikv: eliminate unnecessary pessimistic rollback (#12561)


pingcap/tidb,pingcap/tidb,kyle-wang/tidb,pingcap/tidb,c4pt0r/tidb,ngaut/tidb,pingcap/tidb,c4pt0r/tidb,c4pt0r/tidb,ming-relax/tidb,coocood/tidb,ngaut/tidb,ming-relax/tidb,c4pt0r/tidb,Cofyc/tidb,kyle-wang/tidb,ngaut/tidb,ngaut/tidb,EvilMcJerkface/tidb,c4pt0r/tidb,ngaut/tidb,XuHuaiyu/tidb,coocood/tidb,kyle-wang/tidb,kyle-wang/tidb,kyle-wang/tidb,kyle-wang/tidb,pingcap/tidb,EvilMcJerkface/tidb,XuHuaiyu/tidb,ngaut/tidb,pingcap/tidb,c4pt0r/tidb,Cofyc/tidb