Fixes recursive disconnect-call

... that leads to bazillion error messages when there is an unexpected
connection error.

source/EV3.m

@@ -491,7 +491,7 @@ classdef EV3 < MaskedHandle
             catch ME
                 if ~isempty(strfind(ME.identifier, 'CommError'))
                     warning('Lost connection to the Brick!');
-                    ev3.disconnect();
+                    %ev3.disconnect();
                 else
                     warning('Something went wrong. Try to reset the connection.');
                 end