listen bitbake server status means if bitbake has no available server to use ,it will send a message to client, and tell client there is no bitbake server to use,or bitbake server breaks down. Once user establish a connection to the bitbake server, real-time to inform the user bitbake server status(idle/ busy/disconneted) and working state(build recipe/build package/build image).through bitbake server can find connected user.
feature has been included in the dynamic listening bitbake status.
Webhob feature has changed, the feature will be abandoned.
remove it.