pinctrl: remove ste u300 driver

The ST-Ericsson U300 platform is getting removed, so this driver is no
longer needed.

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20210120132045.2127659-6-arnd@kernel.orgSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/Kconfig

@@ -271,12 +271,6 @@ config PINCTRL_STMFX
 	  and configuring push-pull, open-drain, and can also be used as
 	  interrupt-controller.
 
-config PINCTRL_U300
-	bool "U300 pin controller driver"
-	depends on ARCH_U300
-	select PINMUX
-	select GENERIC_PINCONF
-
 config PINCTRL_MAX77620
 	tristate "MAX77620/MAX20024 Pincontrol support"
 	depends on MFD_MAX77620 && OF

drivers/pinctrl/Makefile

@@ -33,7 +33,6 @@ obj-$(CONFIG_PINCTRL_ROCKCHIP)	+= pinctrl-rockchip.o
 obj-$(CONFIG_PINCTRL_SINGLE)	+= pinctrl-single.o
 obj-$(CONFIG_PINCTRL_SX150X)	+= pinctrl-sx150x.o
 obj-$(CONFIG_ARCH_TEGRA)	+= tegra/
-obj-$(CONFIG_PINCTRL_U300)	+= pinctrl-u300.o
 obj-$(CONFIG_PINCTRL_XWAY)	+= pinctrl-xway.o
 obj-$(CONFIG_PINCTRL_LANTIQ)	+= pinctrl-lantiq.o
 obj-$(CONFIG_PINCTRL_LPC18XX)	+= pinctrl-lpc18xx.o