xfs: cleanup duplicate initializations

follow these guidelines:
- leave initialization in the declaration block if it fits the line
- move to the code where it's more suitable ('for' init block)

The last chunk was modified from David's original to be a correct
fix for what appeared to be a duplicate initialization.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Alex Elder <aelder@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>

fs/xfs/xfs_inode_item.c

@@ -970,7 +970,6 @@ xfs_iflush_abort(
 {
 	xfs_inode_log_item_t	*iip = ip->i_itemp;
 
-	iip = ip->i_itemp;
 	if (iip) {
 		struct xfs_ail	*ailp = iip->ili_item.li_ailp;
 		if (iip->ili_item.li_flags & XFS_LI_IN_AIL) {