weston-init: Keep the logic to edit weston.ini to meta-freescale
This logic does not work across multiple layers even OE-Core machines
dont build with it. For now its best to keep this confined to
meta-freescale machines
Idea is good but it needs to align with OE-core's methods where
currently in OE-Core we expect machines to override weston.ini
completely per machine, this logic sort of goes against it. However it
has some goodness to it, eg. adding options based on DISTRO_FEATURES
which OE-Core could have too but maybe implemented differently.
