cmake/modules/FindVIGRA.cmake: Remove unnecessary step of getting VIGRA_VIGRANUMPYCORE_LIBRARY_PATH.
cmake/modules/FindVIGRA.cmake: Remove unnecessary step of getting VIGRA_VIGRANUMPYCORE_LIBRARY_PATH.

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