Remove amici.sim.sundials._pandas (#3083)

This was supposed to be removed already in #3064. Looks like some merge issue with #3060.

Author: dweindl

python/sdist/amici/sim/sundials/__init__.py

@@ -50,7 +50,6 @@
     from ._numpy import ExpDataView as ExpDataView
     from ._numpy import ReturnDataView as ReturnDataView
     from ._numpy import evaluate as evaluate
-    from ._pandas import *
 
     # Import after import of the swig module as this is supposed to
     #  shadow some swig symbols