build-setup: remove duplicate machine config
build-setup: remove duplicate machine config

The earlier scripts are now using 'setup' directly to
get machine configuration information.  Remove a bunch
of duplicate / unnecessary configuration such as the
template directory (which is determined automatically
by setup) and DISTRO (which is often represented in
local.conf.sample).  Leave just the configs where we
deviate from the default in openbmc/openbmc.

Signed-off-by: Patrick Williams <cbb7353e6d953ef360baf960c122346276c6e320@stwcx.xyz>
Change-Id: If00f8d3ba5a16a0d163c321692048b37cd913dd3

openbmc/openbmc-build-scripts,openbmc/openbmc-build-scripts