Remove explicit __del__'s in threaded classes

Author: sl0thentr0py

sentry_sdk/monitor.py

@@ -118,7 +118,3 @@ def downsample_factor(self):
     def kill(self):
         # type: () -> None
         self._running = False
-
-    def __del__(self):
-        # type: () -> None
-        self.kill()

sentry_sdk/sessions.py

@@ -271,7 +271,3 @@ def add_session(
     def kill(self):
         # type: (...) -> None
         self.__shutdown_requested.set()
-
-    def __del__(self):
-        # type: (...) -> None
-        self.kill()

sentry_sdk/transport.py

@@ -158,13 +158,6 @@ def is_healthy(self):
         # type: (Self) -> bool
         return True
 
-    def __del__(self):
-        # type: (Self) -> None
-        try:
-            self.kill()
-        except Exception:
-            pass
-
 
 def _parse_rate_limits(header, now=None):
     # type: (str, Optional[datetime]) -> Iterable[Tuple[Optional[EventDataCategory], datetime]]