You can not remove it from the "Recently Viewed" ListView ...
this is possible on most list view thanks to the "List View" setting in the "Search Layout" section of an object, but strangely, when untick, the button continues to appear when the "Recently Viewed" List View is selected (then disappear when selecting another View).
this is possible on most list view thanks to the "List View" setting in the "Search Layout" section of an object, but strangely, when untick, the button continues to appear when the "Recently Viewed" List View is selected (then disappear when selecting another View).
https://success.salesforce.com/ideaview?id=08730000000Bq6yAAC