cad/cura-engine: WITH_DEBUGINFO is a user feature not a port one
I have no idea what cura-engine is trying to do by adding
WITH_DEBUGINFO, but this activate a feature which is a user defined
feature which result in subpackages, which is not yet a stable feature.
In any case this should never be set in a port.
(cherry picked from commit 271f3fe6c9e633af2d11f4412ad85c8377bc2d10)