- removed the NetUpdate calls from the software renderer.

These can cause highly dangerous recursions and execute play code deep inside the renderer and since the hardware renderer does not have these, there is very little point for the software renderer to retain them.

src/rendering/swrenderer/line/r_renderdrawsegment.cpp

@@ -70,9 +70,6 @@ namespace swrenderer
 		curline = ds->curline;
 		m3DFloor = clip3DFloor;
 
-		if (Thread->MainThread)
-			NetUpdate();
-
 		frontsector = curline->frontsector;
 		backsector = curline->backsector;