[CANCELLED][VOTE] Release Apache MXNet (incubating) version 1.4.0.rc0

[Steffen Rochel]

Dear community -
I'm cancelling the vote due to -1 feedback from Justin due to outstanding
licensing issues.  For details see
https://lists.apache.org/thread.html/ebb8c4c00fb66dd98da13621c7dcb8753fee57562a861d61379d31e9@%3Cgeneral.incubator.apache.org%3E


The MXNet community will address the issues raised and  and send out rc1
for another vote.

Regards,
Steffen