Only call active_sessions GC if the worker has created a session since last time.
Only call active_sessions GC if the worker has created a session since last time.

vishwaprakashmishra/xmatrix,vishwaprakashmishra/xmatrix,TouK/vumi,harrissoerja/vumi,vishwaprakashmishra/xmatrix,harrissoerja/vumi,harrissoerja/vumi,TouK/vumi,TouK/vumi