sparc: drop unused MAX_PHYSADDR_BITS

The macro is not used anywhere, so remove the definition.
Signed-off-by: NArvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Reviewed-by: NAndrew Morton <akpm@linux-foundation.org>
Reviewed-by: NDavid Hildenbrand <david@redhat.com>
Acked-by: NDave Hansen <dave.hansen@linux.intel.com>
Acked-by: NDavid S. Miller <davem@davemloft.net>
Acked-by: NMike Rapoport <rppt@linux.ibm.com>
Link: http://lkml.kernel.org/r/20200723231544.17274-4-nivedita@alum.mit.eduSigned-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

arch/sparc/include/asm/sparsemem.h

@@ -7,7 +7,6 @@
 #include <asm/page.h>
 
 #define SECTION_SIZE_BITS       30
-#define MAX_PHYSADDR_BITS       MAX_PHYS_ADDRESS_BITS
 #define MAX_PHYSMEM_BITS        MAX_PHYS_ADDRESS_BITS
 
 #endif /* !(__KERNEL__) */