btrfs: remove redundant counter check at btrfs_truncate_inode_items()

At btrfs_truncate_inode_items(), in the while loop when we decide that we
are going to delete an item, it's pointless to check that 'pending_del_nr'
is non-zero in an else clause because the corresponding if statement is
checking if 'pending_del_nr' has a value of zero. So just remove that
condition from the else clause.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/inode-item.c

@@ -660,8 +660,7 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
 				/* No pending yet, add ourselves */
 				pending_del_slot = path->slots[0];
 				pending_del_nr = 1;
-			} else if (pending_del_nr &&
-				   path->slots[0] + 1 == pending_del_slot) {
+			} else if (path->slots[0] + 1 == pending_del_slot) {
 				/* Hop on the pending chunk */
 				pending_del_nr++;
 				pending_del_slot = path->slots[0];