public bool remove_group (string uri, string group) throws BookmarkFileError
group from the list of groups to which the bookmark for
uri belongs to.
In the event the URI cannot be found, false is returned and throws is set to g_bookmark_file_error_uri_not_found. In the event no group was defined, false is returned and throws is set to g_bookmark_file_error_invalid_value .
a valid URI
the group name to be removed