Delete inv_cisco_support.py

web/plugins/config/inv_cisco_support.py

-#!/usr/bin/python
-# -*- encoding: utf-8; py-indent-offset: 4 -*-
-
-# Custom user stylesheet to load (resides in htdocs/)
-if custom_style_sheet is None:
-    custom_style_sheet = ['inv_cisco_support.css']
-elif type(custom_style_sheet) is list:
-    custom_style_sheet.append('inv_cisco_support.css')
-
-custom_style_sheet = 'inv_cisco_support.css'
\ No newline at end of file