remove dead plotlyupdate auto-updater stub

Author: robertoffmoura

README.md

@@ -22,13 +22,6 @@ If you have a plotly bundle url of the form '<http://cdn.plot.ly/plotly-latest.m
 
 For online use, run `plotlysetup_online('your_username', 'your_api_key')` to get started.
 
-### Updates
-
-**NOTE:** `plotlyupdate.m` is currently turned off.
-
-Please manually download and setup the latest version
-of the wrapper by following the installation instructions above.
-
 ## Usage
 
 Convert your MATLAB® figures into online [Plotly](https://plot.ly) graphs with a single line of code:

plotly/plotly_setup_aux/plotlycleanup.m

@@ -46,8 +46,7 @@
     end
 
     for d = 1:length(plotlyDirs)
-        % add plotlydirs to searchpath (will be removed in future once
-        % handled by plotlyupdate)
+        % add plotlydirs to searchpath
         addpath(genpath(plotlyDirs{d}));
 
         % delete files from plotly directory