I have seen quite a bit of posts about hiding menu items in admin, the method I chose was to create a custom module and disable it through there - which seemed like the most elegant way of doing this. But I can't quite seem to get it to work. Here is what I did:
File: app/etc/modules/LDW_All.xml
<?xml version="1.0"?>
<config>
<modules>
<LDW_AdminMenu>
<active>true</active>
<codePool>local</codePool>
</LDW_AdminMenu>
</modules>
</config>
File: app/code/local/LDW/AdminMenu/etc/adminhtml.xml
<?xml version="1.0" encoding="utf-8"?>
<config>
<modules>
<LDW_AdminMenu>
<version>0.1.0</version>
</LDW_AdminMenu>
</modules>
<adminhtml>
<menu>
<mobile>
<depends><module>HideMe</module></depends>
</mobile>
</menu>
</adminhtml>
</config>
Source: http://www.bubblecode.net/en/2012/01/21/magento-how-to-hide-menu-items-of-admin-panel/