pinctrl: single: Drop if block with always false condition

pcs_remove() is only called after pcs_probe() completed successfully. In
this case platform_set_drvdata() was called with a non-NULL argument and
so platform_get_drvdata() won't return NULL.

Simplify by removing the if block with the always false condition.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20231009083856.222030-3-u.kleine-koenig@pengutronix.de


Signed-off-by: Linus Walleij <linus.walleij@linaro.org>