Revert "calling 'indices' fixture as 'index'"

This reverts commit 1eba26d.

Author: SaturnFromTitan

pandas/conftest.py

@@ -404,10 +404,6 @@ def indices(request):
     return indices_dict[request.param].copy()
 
 
-# gh-32974
-index = indices
-
-
 # ----------------------------------------------------------------
 # Series'
 # ----------------------------------------------------------------