Hey Ramesh,
If you are trying to delete the bus objects from your MATLAB workspace then you can simply use the "clear" command as following:
clear busobj
However, if you are referring to deleting the Bus Creator/Selector blocks, you can use the "delete" command to delete an existing System Object. You can use function to programmatically delete any block. You can refer to the following documentation for the usage of "delete" function: https://www.mathworks.com/help/matlab/ref/matlab.system.delete.html
I hope this answers your query!
