Admin menu disable new/delete page

Question

So I've been tinkering with the admin roles and I can't seem to be able to revoke create page rights for the admin. I can only find 'Edit page'.

If I remove Edit page, the entire pages tab goes away(probably because of not enough rights)..

Is there a way to disable creating/deleting pages and keep the pages tab?

I have this so far.

$role = get_role('administrator');
$role->remove_cap('delete_pages');
$role->remove_cap('delete_others_pages');
$role->remove_cap('delete_published_pages');
$role->remove_cap('publish_pages');

Answer 1

If achieving this with a plugin is acceptable to you, an answer to a similar question recommended the Advanced Access Manager plugin.

Answer 2

By removing the capability of deleting published pages and publishing pages, I have effectively stopped the admin from creating or deleting anything that is on the website.

$role = get_role('administrator');  
$role->remove_cap('delete_published_pages');  
$role->remove_cap('publish_pages');