realtek: eth: drop pick queue functions

realtek: eth: drop pick queue functions

The operating system has enough features to control the transmit
queues. There is no need to provide a hard coded distribution
function. Especially differentiating between a round robin for
RTL83xx and high/low priority for RTL93xx makes no sense. All
devices have the same low/high priority queues.

Simply present two "generic" queues to the kernel.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://github.com/openwrt/openwrt/pull/21778
Signed-off-by: Robert Marko <robimarko@gmail.com>