Revert "[engine] MeshBoundaryROI: output also the boundary edges"
Revert "[engine] MeshBoundaryROI: output also the boundary edges"

edges are not needed yet

This reverts commit 27235a31354ab6356aa7ba10ad17dddb366cb068 [formerly de3709ac9854ce72a4167d63dc0069023e1c03d5].

Conflicts:
	modules/SofaEngine/MeshBoundaryROI.h

Former-commit-id: 0e5d118be7fb806ed601e0462588012ecaaa155d
FabienPean/sofa,hdeling/sofa,FabienPean/sofa,Anatoscope/sofa,hdeling/sofa,FabienPean/sofa,hdeling/sofa,Anatoscope/sofa,hdeling/sofa,FabienPean/sofa,hdeling/sofa,FabienPean/sofa,hdeling/sofa,hdeling/sofa,FabienPean/sofa,Anatoscope/sofa,Anatoscope/sofa,FabienPean/sofa,FabienPean/sofa,Anatoscope/sofa,Anatoscope/sofa,hdeling/sofa,Anatoscope/sofa,hdeling/sofa,hdeling/sofa,FabienPean/sofa,FabienPean/sofa,Anatoscope/sofa,Anatoscope/sofa