Open your Contacts list or Favorites list.
Touch the name of a contact in the list to view its details.
Touch the Menu Key > Delete contact .
If you delete a contact from Google Contacts (or another account with editable contacts), the contact is also deleted from Contacts on the web the next time you sync your phone.
If the contact contains information from both editable accounts (such as Contacts) and from a read-only account, a dialog box informs you that the information from the read-only account will be hidden, not deleted.
Touch the OK button to confirm that you want to delete the contact.