Description:
It should be possible to delete suggestions in the searchbar using the [Del] key.

Use case:
When typing in the search bar, you may get suggestions that you know they are dead links (old bookmarks) or that you didn't want opera to remember (history). Using the [Del] key would be fast and distraction-free way to get rid of them and immediately continuing to search what you wanted to search. Currently, you would have to open history or bookmarks to delete the unwanted item before you can return to your original workflow.