Revert "net: dev: introduce support for sch BYPASS for lockless qdisc"

Revert "net: dev: introduce support for sch BYPASS for lockless qdisc"

This reverts commit 4cbf01700c4dbc9141028c49546f640498b394ed

Ahmed reported ouf-of-order issues bisected to commit 4cbf01700c4d
("net: dev: introduce support for sch BYPASS for lockless qdisc").
I can't find any working solution other than a plain revert.

This will introduce some minor performance regressions for
pfifo_fast qdisc. I plan to address them in net-next with more
indirect call wrapper boilerplate for qdiscs.

Reported-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Fixes: 4cbf01700c4d ("net: dev: introduce support for sch BYPASS for lockless qdisc")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>