Revert "Merge pull request #1 from wankai/master"

This reverts commit 43f2f1c79b316e4551af1818bdcb6f2f277ce1c4, reversing
changes made to 718641bf294bef6e45d0287952f3c0e1391991fc.

This does not appear to be a bug at all. The raft server doesn't
handle the starting case if this error is not ignored.