The template_unit_infantry.xml template defines a list of building entities shared amongst all factions, which also includes the {civ}_wonder.
However, the majority of individual *_infantry_*_b.xml templates also added the wonder to the building list, which is:
- unnecessary (it's already included)
- inconsistent (not all infantry templates do this)
- confusing (all other shared buildings are not separately added again)
- potentially problematic (if the wonder is removed from the generic infantry template, it would work only for a minority of factions).
Therefore this patch removes the wonder from individual templates.