ARM: SAMSUNG: Fix build error from stale define in <plat/uncompress.h>

The decleration of error() as static in the platform specific uncompress
code in  arch/arm/plat-samsung/include/plat/uncomopress.h causes the build
of the uncompressor to break. Remove it, as it is no longer needed.

arch/arm/boot/compressed/decompress.o: In function `gunzip':
/var/tmp/kernel-orig/arch/arm/boot/compressed/../../../../lib/decompress_inflate.c:67: undefined reference to `error'
/var/tmp/kernel-orig/arch/arm/boot/compressed/../../../../lib/decompress_inflate.c:73: undefined reference to `error'
/var/tmp/kernel-orig/arch/arm/boot/compressed/../../../../lib/decompress_inflate.c:80: undefined reference to `error'
/var/tmp/kernel-orig/arch/arm/boot/compressed/../../../../lib/decompress_inflate.c:95: undefined reference to `error'
/var/tmp/kernel-orig/arch/arm/boot/compressed/../../../../lib/decompress_inflate.c:152: undefined reference to `error'
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

arch/arm/plat-samsung/include/plat/uncompress.h

@@ -140,8 +140,6 @@ static void arch_decomp_error(const char *x)
 #define arch_error arch_decomp_error
 #endif
 
-static void error(char *err);
-
 #ifdef CONFIG_S3C_BOOT_UART_FORCE_FIFO
 static inline void arch_enable_uart_fifo(void)
 {