Remove async task

[coveralls]

Coverage: 77.279% (+0.2%) from 77.076% when pulling d00aae37b0f97263d1238c6305323b987a195fe1 on remove-asyncTask into ce201bbb080024ffccd4169732ea38d6130c76ee on master.

[ndegwamartin]

@hilpitome do we want o make a new artefact release with the above updates? In which case we need to bump up the artefact version