s390/mm: remove MAX_PHYSADDR_BITS define

It's unused, so remove it.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/include/asm/sparsemem.h

@@ -4,13 +4,11 @@
 #ifdef CONFIG_64BIT
 
 #define SECTION_SIZE_BITS	28
-#define MAX_PHYSADDR_BITS	46
 #define MAX_PHYSMEM_BITS	46
 
 #else
 
 #define SECTION_SIZE_BITS	25
-#define MAX_PHYSADDR_BITS	31
 #define MAX_PHYSMEM_BITS	31
 
 #endif /* CONFIG_64BIT */