Remove unused label from affs/file.c

diff -Nru a/fs/affs/file.c b/fs/affs/file.c
@@ -391,9 +391,6 @@
 	affs_unlock_ext(inode);
 	return 0;
 
-err_small:
-	affs_error(inode->i_sb,"get_block","Block < 0");
-	return -EIO;
 err_big:
 	affs_error(inode->i_sb,"get_block","strange block request %d", block);
 	return -EIO;