Remove dead code (GridConnectObserver is replaced by verbose=True in examples where PhysicalLayer subclass is avaiable).

Author: Poikilos

examples/example_frame_interface.py

@@ -19,7 +19,6 @@
 # endregion same code as other examples
 
 from openlcb import precise_sleep  # noqa: E402
-from openlcb.canbus.gridconnectobserver import GridConnectObserver  # noqa:E402
 from openlcb.tcplink.tcpsocket import TcpSocket  # noqa: E402
 from openlcb.canbus.canphysicallayergridconnect import (  # noqa: E402
     CanPhysicalLayerGridConnect,
@@ -80,8 +79,6 @@ def handleDisconnect():
 physicalLayer.sendFrameAfter(frame)
 physicalLayer.sendAll(sock, verbose=True)
 
-observer = GridConnectObserver()
-
 # display response - should be RID from nodes
 while True:
     count = physicalLayer.receiveAll(sock, verbose=True)

examples/example_node_implementation.py

@@ -20,7 +20,6 @@
 # endregion same code as other examples
 
 from openlcb import precise_sleep  # noqa: E402
-from openlcb.canbus.gridconnectobserver import GridConnectObserver  # noqa:E402
 from openlcb.tcplink.tcpsocket import TcpSocket  # noqa: E402
 
 from openlcb.canbus.canphysicallayergridconnect import (  # noqa: E402
@@ -160,8 +159,6 @@ def displayOtherNodeIds(message) :
                   NodeID(settings['localNodeID']), None)
 canLink.sendMessage(message)
 
-observer = GridConnectObserver()
-
 # process resulting activity
 while True:
     count = 0

examples/example_remote_nodes.py

@@ -14,7 +14,6 @@
 from timeit import default_timer
 from examples_settings import Settings  # do 1st to fix path if no pip install
 from openlcb import precise_sleep
-from openlcb.canbus.gridconnectobserver import GridConnectObserver
 settings = Settings()
 
 if __name__ == "__main__":
@@ -106,7 +105,6 @@ def printMessage(msg):
 
 readQueue = Queue()
 
-observer = GridConnectObserver()
 _frameReceivedListeners = physicalLayer._frameReceivedListeners
 assert len(_frameReceivedListeners) == 1, \
     "{} listener(s) unexpectedly".format(len(_frameReceivedListeners))