OR you can do this:
Go to Control Panel -> NEtwork
Select default logon drop down menu and set it to "Windows Logon" Hit apply and the reboot when asked.
Next time you start up it will ask you for a password. just hit enter, dont put anything in...voila! it will never ask again.
The problem with removing the Client for Microsoft Networks is that if you need to get to a shared resource on another Windows System you are out of luck.
If you dont need to get to any shared drives then nuke it.