diff --git a/stubs/rx/concurrency/newthreadscheduler.pyi b/stubs/rx/concurrency/newthreadscheduler.pyi
deleted file mode 100644
--- a/stubs/rx/concurrency/newthreadscheduler.pyi
+++ /dev/null
@@ -1,19 +0,0 @@
-# Stubs for rx.concurrency.newthreadscheduler (Python 3)
-#
-# NOTE: This dynamically typed stub was automatically generated by stubgen.
-
-from .eventloopscheduler import EventLoopScheduler
-from .schedulerbase import SchedulerBase
-from typing import Any, Optional
-
-log: Any
-
-class NewThreadScheduler(SchedulerBase):
-    thread_factory: Any = ...
-    def __init__(self, thread_factory: Optional[Any] = ...) -> None: ...
-    def schedule(self, action: Any, state: Optional[Any] = ...): ...
-    def schedule_relative(self, duetime: Any, action: Any, state: Optional[Any] = ...): ...
-    def schedule_absolute(self, duetime: Any, action: Any, state: Optional[Any] = ...): ...
-    def schedule_periodic(self, period: Any, action: Any, state: Optional[Any] = ...): ...
-
-new_thread_scheduler: Any