parallels: return only success from PCS event handler
parallels: return only success from PCS event handler

2 reasons to to this.
1. PCS SDK really don't care of handler return value.
2. It hard to imagine how notifier can handle
subscriber failures. Even if there are some situations
we probably will use some special error codes and
not just throw error codes we get from SDK itself.

Signed-off-by: Nikolay Shirokovskiy <7fa0e2698a05be944b362bdf5d7736c0162e16c9@parallels.com>

zippy2/libvirt,agx/libvirt,VenkatDatta/libvirt,rlaager/libvirt,zippy2/libvirt,nertpinx/libvirt,jardasgit/libvirt,taget/libvirt,datto/libvirt,zippy2/libvirt,olafhering/libvirt,olafhering/libvirt,fabianfreyer/libvirt,libvirt/libvirt,crobinso/libvirt,jfehlig/libvirt,agx/libvirt,andreabolognani/libvirt,crobinso/libvirt,nertpinx/libvirt,jardasgit/libvirt,jfehlig/libvirt,nertpinx/libvirt,rlaager/libvirt,libvirt/libvirt,eskultety/libvirt,agx/libvirt,jfehlig/libvirt,taget/libvirt,rlaager/libvirt,taget/libvirt,crobinso/libvirt,datto/libvirt,agx/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,VenkatDatta/libvirt,andreabolognani/libvirt,VenkatDatta/libvirt,eskultety/libvirt,andreabolognani/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,olafhering/libvirt,datto/libvirt,eskultety/libvirt,eskultety/libvirt,rlaager/libvirt,taget/libvirt,crobinso/libvirt,fabianfreyer/libvirt,VenkatDatta/libvirt,andreabolognani/libvirt,nertpinx/libvirt,rlaager/libvirt,jardasgit/libvirt,libvirt/libvirt,andreabolognani/libvirt,taget/libvirt,VenkatDatta/libvirt,datto/libvirt,agx/libvirt,eskultety/libvirt,zippy2/libvirt,fabianfreyer/libvirt,nertpinx/libvirt,libvirt/libvirt,jfehlig/libvirt,olafhering/libvirt,datto/libvirt