wifi: rtw89: debug: remove wrapper of rtw89_debug()

The wrapper of rtw89_debug() is unnecessary, so just remove it.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20231122060458.30878-5-pkshih@realtek.com