Remove the link underline effect in the Text widget (Most Themes)

In most of our themes the Text widget is coded with hyperlinks automatically underlined. For a reference example, check out the Text widget located in this demo site, located in the third sidebar near the bottom of the blog feed. It looks like this:

Some users do not wish for these links to be underlined. If you want to remove the underline styling for links in the Text widget, use the Code Hack below. This code will work for Brevier, Miramar, Presidio and Rania themes.