Welcome Back XPTL
You could edit the TXMT so i becomes invisible but its easier to delete the mesh.
Its something you can do yourself i guess.
-Extract the meshfile(GMDC) from the game files
-Start a new package with Simpe and put that file in it(like a default replacement)
-Select the file in the resource list
-Go to Generic Rcol editor in plugin view
-Go to the groups tab, select the mesh in the group section.
-Delete it, click commit and save your file
Edit,
Thinking about it...
You better extract its SHPE file and edit it in the same way.
Its how i deleted all those rockbolders.
http://www.insimenator.org/index.php/topic,72184.0.html