s390/setup: remove unused symbolic constants for C code from setup.h

These symbolic constants are used only by assembler code now:
* COMMAND_LINE
* IPL_DEVICE

C code of the decompressed kernel should use boot data passed
by the decompressor instead.
Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

arch/s390/include/asm/setup.h

@@ -59,9 +59,6 @@
 #include <asm/lowcore.h>
 #include <asm/types.h>
 
-#define IPL_DEVICE	(*(unsigned long *)  (IPL_DEVICE_OFFSET))
-#define COMMAND_LINE	((char *)	     (COMMAND_LINE_OFFSET))
-
 struct parmarea {
 	unsigned long ipl_device;			/* 0x10400 */
 	unsigned long initrd_start;			/* 0x10408 */