lxcProcReadMeminfo: Drop @new_meminfo variable
lxcProcReadMeminfo: Drop @new_meminfo variable

In the lxcProcReadMeminfo() function we have @buffer variable
which is statically allocated and then @new_meminfo which is just
a pointer to the @buffer. This is needless, the @buffer can be
accessed directly.

Signed-off-by: Michal Privoznik <83d82aaba2eed257f4814b0c239c260c4caaadf0@redhat.com>
Reviewed-by: Ján Tomko <4cab11cfb98d3c937327354a78eb07dbb6ee2bc6@redhat.com>

jfehlig/libvirt,crobinso/libvirt,libvirt/libvirt,jfehlig/libvirt,jfehlig/libvirt,olafhering/libvirt,libvirt/libvirt,olafhering/libvirt,olafhering/libvirt,libvirt/libvirt,crobinso/libvirt,jfehlig/libvirt,zippy2/libvirt,zippy2/libvirt,zippy2/libvirt,zippy2/libvirt,crobinso/libvirt,crobinso/libvirt,libvirt/libvirt,olafhering/libvirt