remove comma

propulate/propulator.py

@@ -488,7 +488,7 @@ def propulate(self, logging_interval: int = 10, debug: int = -1) -> None:
         self.propulate_comm.barrier()
 
     def _intra_send_cleanup(self) -> None:
-        """Delete all send buffers, that have been sent."""
+        """Delete all send buffers that have been sent."""
         completed = MPI.Request.Testsome(self.intra_requests)
         # Remove requests and buffers of complete send operations.
         self.intra_requests = [r for i, r in enumerate(self.intra_requests) if i not in completed]