Now that the stp_set() helpers have been refactored the stp_get()
helpers can be simplified. Drop the last array parameter. It is
no longer needed/evaluated by its callers.
Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://github.com/openwrt/openwrt/pull/23080
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>