729531 - Implement a way to remove awesomebar results

Status: RESOLVED DUPLICATE of bug 671131

Description

[Ian Barlow (:ibarlow)]

Sometimes results appear in our awesomebar that are irrelevant / embarrassing / wrong. We should build a simple means to remove them, either by

1. Long press on result, launch context menu with option to "Delete"
or
2. Swipe to remove (on ICS)

This action should delete the URL from your awesomebar results and your history. It should not be undoable, and should only be a one-time deletion. In other words, if a user visits the url again later, it should reappear in their awesomebar and history results.