Deleting a mesh - should be really simple

On grasshopper there is no “delete”.
Geometries are stored in parameters (as in your picture) and they just exist or not in a given data flow.

Do you want to delete a rhino geometry from grasshopper?
You can do that with a simple C# script, through guid.

Please explain better.

Code as suggested by @603419608 here: Delete object (4.3 KB)