sparc64: Revert 16GB huge page support.

It overflows the amount of space available in the initial .text section
of trap handler assembler in some configurations, resulting in build
failures.

Signed-off-by: David S. Miller <davem@davemloft.net>

arch/sparc/kernel/tsb.S

@@ -117,7 +117,7 @@ tsb_miss_page_table_walk_sun4v_fastpath:
 	/* Valid PTE is now in %g5.  */
 
 #if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
-	sethi		%uhi(_PAGE_PMD_HUGE | _PAGE_PUD_HUGE), %g7
+	sethi		%uhi(_PAGE_PMD_HUGE), %g7
 	sllx		%g7, 32, %g7
 
 	andcc		%g5, %g7, %g0

arch/sparc/kernel/vmlinux.lds.S

@@ -154,11 +154,6 @@ SECTIONS
 		*(.get_tick_patch)
 		__get_tick_patch_end = .;
 	}
-	.pud_huge_patch : {
-		__pud_huge_patch = .;
-		*(.pud_huge_patch)
-		__pud_huge_patch_end = .;
-	}
 	PERCPU_SECTION(SMP_CACHE_BYTES)
 
 #ifdef CONFIG_JUMP_LABEL