Don't assume the macro WEAPON_MOUNT_IMD is the same as it is in 3.0.

The 2nd parameter is used in master, but not 3.0.
This was broken in f825a85f5d

Thanks to Berg for the report.

src/component.c

@@ -1145,7 +1145,7 @@ void destroyFXDroid(DROID	*psDroid)
 					{
 						// Tell the effect system that it needs to use this player's color for the next effect
 						SetEffectForPlayer(psDroid->player);
-						psImd = WEAPON_MOUNT_IMD(psDroid,psDroid->player);
+						psImd = WEAPON_MOUNT_IMD(psDroid, 0);
 					}
 				}
 				else