[web] Stop patching jquery.treeview.js
This logically reverts part of e9b7cd2e9012 "allow treeview to work
correctly in a tab #345293".
The treeview and ajax code have suffered a number of changes since then, this
change doesn't seem to be necessary anymore. It is most likely unneeded since
f65208c9dbdc "[javascript] use jQuery.one('ajax-loaded') instead of
jQuery.bind() in add_onload to avoid multiple callback executions".
Latest changes
--------------
* table of `all latest changes`_
Links below is providing useful RQL query example.
.. _all latest changes: view?rql=Any+M%2CX+WHERE+X+modification_date+M+ORDERBY+M+DESC+LIMIT+30