Kfs client library: remove redundant chunk access setup with write sync op.
Kfs client library: remove redundant chunk access setup with write sync op.

chanwit/qfs,fengshao0907/qfs,quantcast/qfs,thebigbrain/qfs,thebigbrain/qfs,fengshao0907/qfs,qnu/qfs,thebigbrain/qfs,chanwit/qfs,fengshao0907/qfs,thebigbrain/qfs,chanwit/qfs,quantcast/qfs,chanwit/qfs,fengshao0907/qfs,quantcast/qfs,chanwit/qfs,qnu/qfs,fengshao0907/qfs,quantcast/qfs,thebigbrain/qfs,qnu/qfs,quantcast/qfs,thebigbrain/qfs,chanwit/qfs,fengshao0907/qfs,qnu/qfs,qnu/qfs,fengshao0907/qfs,qnu/qfs,quantcast/qfs,fengshao0907/qfs,chanwit/qfs,quantcast/qfs,thebigbrain/qfs,thebigbrain/qfs,qnu/qfs,quantcast/qfs,chanwit/qfs,qnu/qfs