[patch] - remove a duplicated assert

[Ian Lance Taylor]

"Christophe Jaillet" <christophe.jaillet@wanadoo.fr> writes:

> 2006-08-04  Christophe Jaillet  <christophe.jaillet@wanadoo.fr>
> 
> * tree.c (is_attribute_with_length_p): Remove a duplicated assert

Looks like Nathan introduced this buglet in revision 87223 on
2004-09-09 when he added gcc_assert to tree.c.

This patch is OK.

Thanks.

Ian