title: How do you disable a specific plugin in Vim?
body: <p>I have Vim set up to use the excellent NERDTree plugin. However, there are some environments where I do not want this plugin to be loaded.</p>
  
  <p>In my .vimrc I have a sections that are only run when specific environment variables are true. In one of these sections I would like to disable the loading of NERDTree but all of the information I've come across states how to disable <em>all</em> plugins, not just one.</p>
  
  <p>Could someone demonstrate how to disable the loading of one specific plugin in Vim?</p>