Partly fix cuda builds of dper broken by caffe2 c++
Summary:
cuda builds using clang error out when building caffe2 due to an incorrect std::move
This does not fix all known errors, but it's a step in the right direction.
Differential Revision: D23626667
fbshipit-source-id: 7d9df886129f671ec430a166dd22e4af470afe1e
