tests/thread/stress_schedule.py: Remove decorator/inaccurate comment.

This test can now run correctly with the native emitter because the
`thread()` function will run the scheduler during the call to
`time.sleep_ms(1)`.

Signed-off-by: Jeff Epler <jepler@unpythonic.net>

Author: jepler

tests/thread/stress_schedule.py

@@ -27,8 +27,6 @@ def task(x):
     n += 1
 
 
-# This function must always use the bytecode emitter so it bounces the GIL when running.
-@micropython.bytecode
 def thread():
     while thread_run:
         try: