[ModelicaSystemDoE] remove unused code

Author: syntron

OMPython/ModelicaSystem.py

@@ -1764,7 +1764,6 @@ def simulate(
 
         def worker(worker_id, task_queue):
             while True:
-                mscmd: Optional[ModelicaSystemCmd] = None
                 try:
                     # Get the next task from the queue
                     mscmd = task_queue.get(block=False)