[ARM] 3920/1: S3C24XX: Remove smdk2410_defconfig

Remove the smdk2410_defconifg as it is out of data
and has not been touched since 2.6.11.

Use the s3c2410_defconfig instead.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>