Hide/Disable Icon

Hi All,

I have a question where i cannot disable or hide the icon on the below near to delete button.

There are 3 icon or button which ; Windows (Alt+W) , View (Alt+V) and Help (Alt-H). Inside the Windows (Alt+W), it will show

new Open New Workspace, and it will show the New Workspace.So that i need to close the icon which give the repetition

usage same Workspace.