This simplifies some deploy steps and replaces
RemoteLinuxDeployStepWidget.

Change-Id: I4ad82c498cee0f15e1c93bf915cd48355017eb84
Reviewed-by: Daniel Teske <daniel.teske@nokia.com>
Reviewed-by: Christian Kandeler <christian.kandeler@nokia.com>
Reviewed-by: Paweł Polański <pawel.3.polanski@nokia.com>