This fix is an vendor update. Both ugorji and thrift have to be pinned
to compile. The ugorji is from etcd and thrift is from zipkin.
This fix fixes#1802.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
* vendor: don't vendor the context stuff
We don't need to vendor this anymore as we moved to the std lib for
these.
* new stuff showing up with dep ensure
* remove go-shlex