bitbake: event: Drop Handled/NotHandled status return values

These have long since been deprecated, lets remove them.

(Bitbake rev: 3dc83bbb1bf387bb7ecea2e17f0f72cfccecba92)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/event.py

@@ -47,9 +47,6 @@ class Event(object):
     def __init__(self):
         self.pid = worker_pid
 
-NotHandled = 0
-Handled    = 1
-
 Registered        = 10
 AlreadyRegistered = 14
 
@@ -58,10 +55,6 @@ _handlers = bb.compat.OrderedDict()
 _ui_handlers = {}
 _ui_handler_seq = 0
 
-# For compatibility
-bb.utils._context["NotHandled"] = NotHandled
-bb.utils._context["Handled"] = Handled
-
 def execute_handler(name, handler, event, d):
     event.data = d
     try:
@@ -80,10 +73,6 @@ def execute_handler(name, handler, event, d):
     finally:
         del event.data
 
-    if ret is not None:
-        warnings.warn("Using Handled/NotHandled in event handlers is deprecated",
-                        DeprecationWarning, stacklevel = 2)
-
 def fire_class_handlers(event, d):
     if isinstance(event, logging.LogRecord):
         return