You can use javascript link instead of plain html ones. Just do href="javascript:void(0)" and handle the click event to redirect the page. This won't remove the option of opening in another tab but will make sure the page doesn't actually open up when tried.
Also instead of an HTML tag, you can instead use another tag like and give it a cursor:pointer css property and jquery onclick to make it work like a link. This will completely remove the option "open in another tab" from context menu.
