CA-141170: EN: Missing Tooltip of "Filter by Location", "Refresh" and "E...

...xport All" in "Alerts" and "Updates" tab under "Notifications".

-Fixed by removing all the (redundant) tooltips from all the buttons in Alerts, Updates, Events view.

Signed-off-by: Gabor Apati-Nagy <gabor.apati-nagy@citrix.com>