Revert changes to abstracts.py and scheduler.py

Author: ChrisThibodeaux

lib/cuckoo/common/abstracts.py

@@ -131,6 +131,10 @@ def set_options(self, options: dict) -> None:
 
     def initialize(self) -> None:
         """Read, load, and verify machines configuration."""
+        # Machine table is cleaned to be filled from configuration file
+        # at each start.
+        self.db.clean_machines()
+
         # Load.
         self._initialize()
 

lib/cuckoo/core/scheduler.py

@@ -284,8 +284,6 @@ def signal_handler(self, signum, frame):
     def start(self):
         """Start scheduler."""
         if self.machinery_manager:
-            with self.db.session.begin():
-                self.db.clean_machines()
             with self.db.session.begin():
                 self.machinery_manager.initialize_machinery()