The 3ds Max FBX Plug-in display layer support is not shown anywhere in the FBX Plug-in interface because the plug-in does not need user input to execute this process. This is because the plug-in assumes if there are display layers included with the file, they are needed. There are no scripting options to disable the FBX layer support.
If you still want to export without the display layers being considered by the FBX plug-in, you must collapse the layers in the 3ds Max scene.
This example is for a scene with multiple objects and layers, such as 3 objects with 3 layers (one object in each).