remove bml_init call, called from btl add_proc.
Refs #3763
OSHMEM: Fixes issue with recent segfault in finalize related to mca_base_group_unselect.
We need to explicitly call mca_base_group_unselect in finalize
for each group that are not freed with oshmem_group_cache_list_free before we unloading scoll framework.

Refs #3763