sparc32: Trivial removal of sun4c references in comments.

I left some around, like the ones in the openprom headers, since
we need to think about which pieces of those datastructures and
code we can completely toss now.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h
index 9f3ab0a..9de855c 100644
--- a/arch/sparc/include/asm/pgtable_32.h
+++ b/arch/sparc/include/asm/pgtable_32.h
@@ -304,8 +304,7 @@
 #define pte_offset_kernel(dir,addr) BTFIXUP_CALL(pte_offset_kernel)(dir,addr)
 
 /*
- * This shortcut works on sun4m (and sun4d) because the nocache area is static,
- * and sun4c is guaranteed to have no highmem anyway.
+ * This shortcut works on sun4m (and sun4d) because the nocache area is static.
  */
 #define pte_offset_map(d, a)		pte_offset_kernel(d,a)
 #define pte_unmap(pte)		do{}while(0)
@@ -367,7 +366,6 @@
 
 /*
  * This is made a constant because mm/fremap.c required a constant.
- * Note that layout of these bits is different between sun4c.c and srmmu.c.
  */
 #define PTE_FILE_MAX_BITS 24
 
@@ -471,10 +469,8 @@
 #endif /* !(__ASSEMBLY__) */
 
 #define VMALLOC_START           _AC(0xfe600000,UL)
-/* XXX Alter this when I get around to fixing sun4c - Anton */
 #define VMALLOC_END             _AC(0xffc00000,UL)
 
-
 /* We provide our own get_unmapped_area to cope with VA holes for userland */
 #define HAVE_ARCH_UNMAPPED_AREA