Cleanup: Remove chType from coding structure to ease parallelization

Xiang Lirequested to merge
XiangLi/VVCSoftware_VTM:remove_chType_from_cs into master

chType was removed from CodingStructure in VTM-1 but was reintroduced with the integration of IBC. To ease parallelization, chType is removed in this merge request.

Merge request reports