Update CMake C++ test phase
Update CMake C++ test phase

As we have stripped `_base` from the C++ tests, cleanup the CMake build
accordingly.

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