commented out deprecated disp

Author: PhilFreeman

roboticstoolbox/mobile/DistanceTransformPlanner.py

@@ -2,7 +2,7 @@
 @Author: Peter Corke, original MATLAB code and Python version
 @Author: Kristian Gibson, initial MATLAB port
 """
-from numpy import disp
+# from numpy import disp
 from scipy import integrate
 from spatialmath.base.transforms2d import *
 from spatialmath.base.vectors import *