If you are an Administrator, you have the ability to remove items from your site’s menu.
Click on Appearance > Menus
Click the arrow on the right side of the menu to expand it.
Then click Remove to delete it from the menu.
Click Save Menu in the top right-hand corner.
NOTE: Removing a link from the menu does not delete the page from your site. It can still be accessed through search. To remove a page from your site, but not delete it, change the status to Draft.