No it was not removing even after that   Not sure if it is fault with IOU   I removed all nat statements except one static nat statement which I was not able to remove..   There was no connection to remote server end where static was created..    Als...

The best way to do is using BPDU Filter on Interface level instead of global level..   It will ignore incoming BPDU Frames as well as stop Outbound BPDU.. By this way, you can prevent STP Leaks