Since the KEP 4885
(https://github.com/kubernetes/enhancements/blob/master/keps/sig-windows/4885-windows-cpu-and-memory-affinity/README.md)
memory manager is supported also on windows.
Plus, we want to add podresources e2e tests which configure
the memory manager. Both these facts suggest it's useful to build
the e2e memory manager tests on all OSes, not just on linux;
However, since we are not sure we are ready to run these tests
everywhere, we tag them LinuxOnly to keep preserve most of the
old behavior.
Signed-off-by: Francesco Romani <fromani@redhat.com>
380ed8d9b3