[configs/releng] Always use x86_64 as primary source for dual-iso

Simplify code path.

Previously in "dual" mode is executed when arch=i686, i686 was used as primary source.
This does not change current behaviour of building "dual" on x86_64.

Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>

0 files changed, 0 insertions, 0 deletions