Select the route link that you want to remove and just press Delete, eg. here we have choose to remove
billing, then press Delete
Also remove any links to this page from other pages. You can identify this from the UI flow - which button leads to which page.
Note, in some case you might not find the page route in
app-routing.moudle.ts . Some routes can be placed in
tabs.router.module.ts . In that case, remove it from the correct file
Press Ctrl+S to save the changes made.
Additionally, you can also remove the deleted page's folder from the project.