remove tests

src/decentralizepy/sharing/Sharing.py

 import json
 import logging
 from collections import deque
-import time
 import numpy
 import torch
 
@@ -153,8 +152,6 @@ class Sharing:
                 )
             )
 
-        start = time.time()
-
         logging.info("Starting model averaging after receiving from all neighbors")
         total = dict()
         weight_total = 0
@@ -175,9 +172,6 @@ class Sharing:
         for key, value in self.model.state_dict().items():
             total[key] += (1 - weight_total) * value  # Metro-Hastings
 
-        end = time.time()
-        logging.info("Average execution time : " + str(end - start) + " seconds")
-
         self.model.load_state_dict(total)
 
         logging.info("Model averaging complete")