selftests/bpf: Remove unused variable in tc_tunnel prog

The variable buf is unused since commit 005edd16562b ("selftests/bpf:
convert bpf tunnel test to BPF_ADJ_ROOM_MAC"). Remove it to fix the
following warning:

    test_tc_tunnel.c:531:7: warning: unused variable 'buf' [-Wunused-variable]

Fixes: 005edd16562b ("selftests/bpf: convert bpf tunnel test to BPF_ADJ_ROOM_MAC")
Signed-off-by: Tobias Klauser <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
Acked-by: Willem de Bruijn <[email protected]>
Acked-by: John Fastabend <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]

0 files changed, 0 insertions, 0 deletions