fix: [Onion module] fix module

Author: Terrtia

bin/modules/Onion.py

@@ -79,8 +79,6 @@ def compute(self, message):
 
         # max execution time on regex
         res = self.regex_findall(self.onion_regex, obj.get_id(), content, r_set=True)
-        for r in res:
-            domains.add(r['domain'])
         for x in res:
             # String to tuple
             x = x[2:-2].replace(" '", "").split("',")