Remove left-overs from RTX_UNCHANGING_P era

[Eric Botcazou]

> 2014-03-20  Eric Botcazou  <ebotcazou@adacore.com>
> 
> 	* calls.c (store_one_arg): Remove incorrect const qualification on the
> 	type of the temporary.
> 	* cfgexpand.c (expand_return): Likewise.
> 	* expr.c (expand_constructor): Likewise.
> 	(expand_expr_real_1): Likewise.

There is also a related comment in the last function, removed as well.


2014-03-20  Eric Botcazou  <ebotcazou@adacore.com>

	* expr.c (expand_expr_real_1): Remove outdated comment.


-- 
Eric Botcazou
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