Just wanted to add that the standalone version (Orbx direct) comes with different files (.json.nostatic and .bgl.nostatic). I'm not sure if this is the case for the marketplace version (or if it has updated since this first post was made).
If you rename those files (remove the .nostatic) and name the existing files e.g. to .static you should be able to remove the statics.
On flightsim.to I couldn't find any related file removing the statics, it might've been removed due to a nostatic version being availble.
Cheers