Removed task watcher

[#83638694]

Signed-off-by: Atul Kshirsagar <atul.kshirsagar@gmail.com>
LRP lifecycle methods return only an error

* Create, Claim, and Start no longer return a *models.ActualLRP

[#83638694]

Signed-off-by: Atul Kshirsagar <atul.kshirsagar@gmail.com>