Unify write_39sf020() and write_49f002() functions

The write_39sf020() and write_49f002() functions are identical except
for whitespace differences, so drop one of them.

Corresponding to flashrom svn r497.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
diff --git a/w49f002u.c b/w49f002u.c
index b7fca6b..3144ebd 100644
--- a/w49f002u.c
+++ b/w49f002u.c
@@ -32,8 +32,8 @@
 
 	printf("Programming page: ");
 	for (i = 0; i < total_size / page_size; i++) {
-		/* write to the sector */
 		printf("%04d at address: 0x%08x ", i, i * page_size);
+		/* Byte-wise writing of 'page_size' bytes. */
 		write_sector_jedec(bios, buf + i * page_size,
 				   bios + i * page_size, page_size);
 		printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");