removed `this.inherited(arguments)` call from constructor

Ran into this problem with a widget that inherited from the TRSsearch widget. This change solved the problem. If I am reading [the docs](http://dojotoolkit.org/reference-guide/1.8/dojo/_base/declare.html#id17) correctly, I'm thinking that we should remove this from all of our widgets if it's there.

@steveoh: What do you think?