-Wunneeded-internal-declaration in drivers/pinctrl/mediatek/pinctrl-airoha.c

[nathanchance]

After commit 3ffeb17a9a27 ("pinctrl: airoha: add support for Airoha AN7583 PINs"):

drivers/pinctrl/mediatek/pinctrl-airoha.c:2064:41: error: variable 'an7583_pinctrl_drive_e2_conf' is not needed and will not be emitted [-Werror,-Wunneeded-internal-declaration]
 2064 | static const struct airoha_pinctrl_conf an7583_pinctrl_drive_e2_conf[] = {
      |                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~

[nathanchance]

https://lore.kernel.org/20251112-pinctrl-airoha-fix-an7583-drive-e2-confg-usage-v1-1-d2550d55e988@kernel.org/