tests, sriov: Remove BeforeAll
tests, sriov: Remove BeforeAll

BeforeAll is deprecated and has no teardown equivalent (using it may leaks resources).

Signed-off-by: Or Mergi <df7b5d365066aa2e85ccd79e6b18e2863f1da762@redhat.com>

kubevirt/kubevirt,kubevirt/kubevirt,kubevirt/kubevirt,kubevirt/kubevirt