nodeinfo: make nodeGetInfo() call nodeGetMemory for memory size
nodeinfo: make nodeGetInfo() call nodeGetMemory for memory size

The nodeGetInfo() method currently has its own code for getting
memory size in KB, that basically just re-invents what nodeGetMemory
already does. Remove it and just call nodeGetMemory, converting its
result from bytes to KB, allowing removal of more platform specific
conditional code.

Signed-off-by: Daniel P. Berrange <bb938cf255e055ff3507f2627d214e8e62118fcf@redhat.com>

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