Magolor: Remove legacy build
Magolor: Remove legacy build

The legacy build was only needed temporarily as boards switched to
larger ECs and is no longer necessary.

BRANCH=None
BUG=None
TEST=make -j buildall

Signed-off-by: Diana Z <cb2016afc7183e5356c690dc63b4ba817470501a@chromium.org>
Change-Id: Ia3351f1870d299c3787fb40de913c969fccf0dbe
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2941898
Reviewed-by: Aseda Aboagye <12c9b286316a940fd31c24070da5ab64cdd4d0e7@chromium.org>
Commit-Queue: Aseda Aboagye <12c9b286316a940fd31c24070da5ab64cdd4d0e7@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec