iflib: actually disable simple_tx when ALTQ is in useHEADmain

When getting some baseline ALTQ numbers, I noticed that
if simlple_tx is enabled in kenv, we wind up re-setting the transmit
routine, but I neglected to actually clear ctx->ifc_sysctl_simple_tx.
That leads to many different panics as we run a mixture of mp_ring
and simple_tx.

Pointy-hat to: gallatin
Sponsored by: Netflix

0 files changed, 0 insertions, 0 deletions