nanshe/imp/segment.py: When removing labels in `ExtendedRegionProps`, there is no need to make a copy of the properties array after using masked indexing as that will already produce a copy.
nanshe/imp/segment.py: When removing labels in `ExtendedRegionProps`, there is no need to make a copy of the properties array after using masked indexing as that will already produce a copy.

DudLab/nanshe,nanshe-org/nanshe,jakirkham/nanshe,DudLab/nanshe,jakirkham/nanshe,nanshe-org/nanshe