I believe it’s not part of Panda, so it must be pulled in by a module imported in your code. By placing an excludeModule command in the pdef file that builds your .p3d file. If you use the (less configurable) packp3d command, then there may be an equivalent option, or maybe not, I’m not sure.
Do first check whether it might actually be part of the built rtdist by grepping for the module name in the .import.xml files in the stage directory. If so, you need to check which package it’s part of and place an excludeModule in the appropriate .pdef file in direct/src/p3d.
I highly doubt that it’s important. It looks like it is part of a vendored module inside a vendored module, and it may not even be used by any code. I suppose you’ll find out when you try it.