Revert "Fix fsck_ufs segfaults with gjournal (SU+J)"

Fix fsck for 32-bit platforms.

This reverts commit f190f9193b.

sbin/fsck_ffs/main.c

@@ -272,7 +272,6 @@ checkfilesys(char *filesys)
 	 * exit status will cause a foreground check to be run.
 	 */
 	sblock_init();
-	bufinit();
 	if (bkgrdcheck) {
 		if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0)
 			exit(3);	/* Cannot read superblock */

sbin/fsck_ffs/setup.c

@@ -298,6 +298,7 @@ setup(char *dev)
 		    (uintmax_t)numdirs * sizeof(struct inoinfo *));
 		goto badsb;
 	}
+	bufinit();
 	if (sblock.fs_flags & FS_DOSOFTDEP)
 		usedsoftdep = 1;
 	else