GrantRoles table in edit Links

[giovaboy]

Is your feature request related to a problem?

With the module in 'link' mode, if the main setting UsePermissions is setted to false, the EditLink page should not display the user role table, confusing users.

Describe the solution you'd like

If UsePermissions is false, then the GrantRoles table should not be visible.
This code in the Page_Load of EditLinks.ascx.cs will make it

if (System.Convert.ToBoolean(Settings[Dnn.Links.SettingName.UsePermissions]) == false) {
  plGrantRoles.Visible = false;
  cblGrantRoles.Visible = false;
}

[valadas]

Can you submit a pull request...