ARM: s3c: remove obsolete config S3C64XX_SETUP_IDE

Commit 0d297df0 ("ARM: s3c: simplify platform code") removes the line
in Makefile.s3c64xx to configure the inclusion of setup-ide-s3c64xx.c,
with CONFIG_S3C64XX_SETUP_IDE. So, since then, config S3C64XX_SETUP_IDE has
no effect and any further purpose.

Remove the obsolete config S3C64XX_SETUP_IDE.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230508040433.13648-1-lukas.bulwahn@gmail.comSigned-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

arch/arm/mach-s3c/Kconfig.s3c64xx

@@ -69,11 +69,6 @@ config S3C64XX_SETUP_I2C1
 	help
 	  Common setup code for i2c bus 1.
 
-config S3C64XX_SETUP_IDE
-	bool
-	help
-	  Common setup code for S3C64XX IDE.
-
 config S3C64XX_SETUP_FB_24BPP
 	bool
 	help
@@ -110,7 +105,6 @@ config MACH_WLF_CRAGG_6410
 	select S3C64XX_DEV_SPI0
 	select S3C64XX_SETUP_FB_24BPP
 	select S3C64XX_SETUP_I2C1
-	select S3C64XX_SETUP_IDE
 	select S3C64XX_SETUP_KEYPAD
 	select S3C64XX_SETUP_SDHCI
 	select S3C64XX_SETUP_SPI