net: remove redundant ASSERT_RTNL() in queue setup functions

The existing netdev_ops_assert_locked() already asserts that either
the RTNL lock or the per-device lock is held, making the explicit
ASSERT_RTNL() redundant.

Cc: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Stanislav Fomichev <stfomichev@gmail.com>
Link: https://patch.msgid.link/20250616162117.287806-5-stfomichev@gmail.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>