Merge branch 'bpf-xdp-remove-xdp-flush'

Jesper Dangaard Brouer says:

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This patchset removes the net_device operation ndo_xdp_flush() call.
This is a follow merge commit 89bbe6172f53 ("Merge branch
'ndo_xdp_xmit-cleanup'").  As after commit ada36ee5cf2e ("bpf/xdp:
devmap can avoid calling ndo_xdp_flush") no callers of ndo_xdp_flush
are left in bpf-next tree.
====================

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>