Remove erroneous printing of messages by the CLI.
Remove erroneous printing of messages by the CLI.

The CLI has always had the facility to print messages associated
with VMs after an operation has been performed. With the recent
reprioritisation work, this caused low priority messages to be
printed rather than high priority messages.

Signed-off-by: Jon Ludlam <e7e3380887a8f95cc9dc4f0d51dedc7e849a287a@eu.citrix.com>

agimofcarmen/xen-api,thomassa/xen-api,Frezzle/xen-api,srowe/xen-api,vasilenkomike/xen-api,ravippandey/xen-api,jjd27/xen-api,koushikcgit/xen-api,salvocambria/xen-api,thomassa/xen-api,thomassa/xen-api,ravippandey/xen-api,robertbreker/xen-api,Frezzle/xen-api,simonjbeaumont/xen-api,koushikcgit/xen-api,agimofcarmen/xen-api,cheng-z/xen-api,huizh/xen-api,vasilenkomike/xen-api,anoobs/xen-api,huizh/xen-api,guard163/xen-api,rafalmiel/xen-api,cheng-z/xen-api,agimofcarmen/xen-api,huizh/xen-api,vasilenkomike/xen-api,ravippandey/xen-api,cheng--zhang/xen-api,jjd27/xen-api,rafalmiel/xen-api,koushikcgit/xen-api,agimofcarmen/xen-api,salvocambria/xen-api,salvocambria/xen-api,cheng-z/xen-api,guard163/xen-api,robertbreker/xen-api,koushikcgit/xen-api,cheng--zhang/xen-api,ravippandey/xen-api,djs55/xen-api,rafalmiel/xen-api,cheng--zhang/xen-api,agimofcarmen/xen-api,djs55/xen-api,jjd27/xen-api,koushikcgit/xen-api,euanh/xen-api,cheng--zhang/xen-api,vasilenkomike/xen-api,anoobs/xen-api,agimofcarmen/xen-api,robertbreker/xen-api,rafalmiel/xen-api,guard163/xen-api,simonjbeaumont/xen-api,srowe/xen-api,anoobs/xen-api,guard163/xen-api,huizh/xen-api,guard163/xen-api,salvocambria/xen-api,thomassa/xen-api,salvocambria/xen-api,thomassa/xen-api,jjd27/xen-api,srowe/xen-api,cheng-z/xen-api,jjd27/xen-api,djs55/xen-api,cheng-z/xen-api,vasilenkomike/xen-api,euanh/xen-api,euanh/xen-api,huizh/xen-api,robertbreker/xen-api,cheng--zhang/xen-api,robertbreker/xen-api,anoobs/xen-api,Frezzle/xen-api,rafalmiel/xen-api,djs55/xen-api,cheng--zhang/xen-api,cheng-z/xen-api,srowe/xen-api,koushikcgit/xen-api,cheng--zhang/xen-api,djs55/xen-api,euanh/xen-api,djs55/xen-api,srowe/xen-api,thomassa/xen-api,anoobs/xen-api,anoobs/xen-api,Frezzle/xen-api,salvocambria/xen-api,simonjbeaumont/xen-api,euanh/xen-api,rafalmiel/xen-api,ravippandey/xen-api,ravippandey/xen-api,Frezzle/xen-api,huizh/xen-api,robertbreker/xen-api,cheng-z/xen-api,vasilenkomike/xen-api,simonjbeaumont/xen-api,jjd27/xen-api,euanh/xen-api,guard163/xen-api,simonjbeaumont/xen-api,simonjbeaumont/xen-api