Mesh collection during import is redundant

[grebz-dev]

HumanGenerator/exts/siborg.create.human/siborg/create/human/human.py

Line 471 in 386f3d2

for mesh in self.mh_meshes:

HumanGenerator/exts/siborg.create.human/siborg/create/human/human.py

Line 662 in 386f3d2

for mh_mesh, mesh in zip(self.mh_meshes, meshes):

Both collect meshes redundantly. Should use mh_meshes passed as argument.