The “emterpreter” was the precursor to the current
asyncify support, but is not in use any more.
Pick-to: 6.3
Change-Id: I07ca04b61747e90939444525641b5aa34f7087b5
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Lorn Potter <lorn.potter@gmail.com>