Below are all the standard RESTful web services and how to use them.
Mark the menu as "Inactive"
Refresh menu ( "QuickStart" will be hidden)
There are many modules enabled by default. This leads to screen clutter. Disabling the modules that are not used will lead to less user confusion and screen clutter.
Navigate to "Admin->Settings-Modules"
Disable the module
Refresh task screen and the "Timesheet" tab will be gone