Unhide handle-methods again

Caused some errors when displaying the devices.

source/EV3.m

@@ -474,12 +474,6 @@ classdef EV3 < MaskedHandle
         end
     end
     
-    methods (Hidden)  % Overload handle-functions to hide them from the user
-        function findprop(varargin)
-             findprop@findprop(varargin{:});
-        end
-    end
-    
     methods (Access = private)  % Private brick functions that are wrapped by dependent params
         function bat = getBattery(ev3)
             if ~ev3.isConnected

source/Sensor.m

@@ -385,12 +385,6 @@ classdef Sensor < MaskedHandle
         end
     end
     
-    methods (Hidden)  % Overload handle-functions to hide them from the user
-        function findprop(varargin)
-             findprop@findprop(varargin{:});
-        end
-    end
-    
     methods (Access = private)  % Private brick functions that are wrapped by dependent params
         function setMode(sensor, mode)
             if ~sensor.connectedToBrick