gallium/aux/tgsi_exec.c: remove superfluous parameter from store_dest_dstret

remove unused parameter inst from store_dest_dstret (and consequently also from
store_dest_double), fixes warning:

tgsi/tgsi_exec.c: In Funktion »store_dest_dstret«:
tgsi/tgsi_exec.c:1765:47: Warning: unused parameter »inst« [-Wunused-parameter]
           const struct tgsi_full_instruction *inst)
                                               ^~~~

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
1 file changed