Stop listening for uncaught errors through port.
The port should be a port that is listening for errors through
addErrorListener. This call requests that the isolate stops sending
errors on the port.
If the same port has been passed via addErrorListener more than once,
only one call to removeErrorListener is needed to stop it from receiving
errors.
Closing the receive port at the end of the send port will not stop the isolate from sending errors, they are just going to be lost.
Source
external void removeErrorListener(SendPort port);