Fix some warnings in libgfortran

[Steven Bosscher]

On Sunday 15 May 2005 00:33, Andreas Jaeger wrote:
> 	* intrinsics/pack_generic.c (pack): Remove unneeded calculation.
>
> 	* m4/matmull.m4 (matmul_): Remove unneeded calculations, fix
> 	pointer cast to avoid warning.

This one is missing from the patch, so be careful not to miss it
when you commit this.

> 	* generated/matmul_l4.c: Regenerated.
> 	* generated/matmul_l8.c: Regenerated.

This is OK.

Gr.
Steven