Backport PR #48935 on branch 1.5.x (DOC: reverted directive for SAS logo white) (#48960)

Backport PR #48935: DOC: reverted directive for SAS logo white

Co-authored-by: Lorenzo Vainigli <[email protected]>

Author: meeseeksmachine

doc/source/getting_started/index.rst

@@ -607,10 +607,6 @@ the pandas-equivalent operations compared to software you already know:
     ---
     :card: + comparison-card-sas
     :img-top: ../_static/logo_sas.svg
-     :class: only-light
-
-    :img-top: ../_static/logo_sas_white.svg
-     :class: only-dark
 
     The `SAS <https://en.wikipedia.org/wiki/SAS_(software)>`__ statistical software suite
     also provides the ``data set`` corresponding to the pandas ``DataFrame``.