title: remove netrw s-up and s-down mapping in vim
body: <p>I have the following mappings in my .vimrc file that I use to move between windows, but when in an explore window :e of netrw plugin the shift down key will produce a warning window instead of respecting my mappings. I am assuming this mapping must be hard coded into the plugin itself. How can I remove the shift-up and shift-up mappings in the plugin. </p>
  
  <pre><code>nnoremap &lt;silent&gt; &lt;S-Up&gt; :wincmd k&lt;CR&gt;     
  nnoremap &lt;silent&gt; &lt;S-Down&gt; :wincmd j&lt;CR&gt;   
  </code></pre>
  
  <p>The window that shows up when trying to do a shift-up or shift-down is below, which shows up in a new split which is very annoying: </p>
  
  <pre><code>**warning** (netrw) using Nexplore or &lt;s-down&gt; improperly; see help for netrw-starstar
  </code></pre>
  
  <p>As a result, my question is how can I shut off this behavior in the netrw plugin so that it respects my mappings shown above instead.</p>