message: For now add no op stream allocations
  Reviewers: #tensorflow, #framework_ip_review_-_any_oss_or_third-party_code_use_has_been_approved, georgep
  Maniphest Tasks: T63317
diff: @@ -111,8 +111,10 @@ Status PopItExecutor::WaitForEvent(se::Stream* stream, se::Event* event) {
  se::Event::Status PopItExecutor::PollForEventStatus(se::Event* event) {
  NOT_IMPLEMENTED;
  }
  -bool PopItExecutor::AllocateStream(se::Stream* stream) { NOT_IMPLEMENTED; }
  -void PopItExecutor::DeallocateStream(se::Stream* stream) { NOT_IMPLEMENTED; }
  +// If we decide to put the popitSession inside the stream then this
  +// will create the session but I think the session belongs in the executor
  +bool PopItExecutor::AllocateStream(se::Stream* stream) { return true; }
  +void PopItExecutor::DeallocateStream(se::Stream* stream) {}
  bool PopItExecutor::CreateStreamDependency(se::Stream* dependent,
  se::Stream* other) {
  NOT_IMPLEMENTED;
  