Replace code migrated from R with pingouin functions

Issue:
https://github.com/genenetwork/gn-gemtext-threads/blob/main/topics/gn1-migration-to-gn2/partial-correlations.gmi

* Replace the code that was in the process of being migrated from R in
  GeneNetwork1 with calls to pingouin functions that achieve the same thing.

  Since the functions in this case are computing correlations and partial
  correlations, rather than having home-rolled functions to do that, this
  commit makes use of the tried and tested pingouin functions.

  This avoids complicating our code with edge-case checks, and leverages the
  performance optimisations done in pingouin.

0 files changed, 0 insertions, 0 deletions