pinctrl: samsung: removing duplicated condition for PINCTRL_SAMSUNG

Now, PINCTRL_SAMSUNG should be enabled with PINCTRL_EXYNOS so we don't
need to add 'depends on' condition already added in PINCTRL_EXYNOS.

Cc: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/Kconfig

@@ -181,7 +181,6 @@ config PINCTRL_COH901
 
 config PINCTRL_SAMSUNG
 	bool
-	depends on OF && GPIOLIB
 	select PINMUX
 	select PINCONF