Fix #10: Remove incorrect error logging

I also deleted the associated test.

src/robofish/io/file.py

@@ -207,8 +207,6 @@ class File(h5py.File):
         calendar_time_points: Iterable = None,
         default: bool = False,
     ):
-        if frequency_hz is not None and monotonic_time_points_us is not None:
-            logging.exception("Specify either frequency_hz or timestamps, not both.")
 
         # Find Name for sampling if none is given
         if name is None: