bug #5768 Removed "http_basic" config from the login form cookbook (javiereguiluz)

This PR was merged into the 2.3 branch.

Discussion
----------

Removed "http_basic" config from the login form cookbook

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | all
| Fixed tickets | #5763

Commits
-------

d019f83 Removed an outdate paragraph
f73133d Removed "http_basic" config from the login form cookbook

Author: weaverryan

cookbook/security/form_login_setup.rst

@@ -12,10 +12,6 @@ In this entry, you'll build a traditional login form. Of course, when the
 user logs in, you can load your users from anywhere - like the database.
 See :ref:`security-user-providers` for details.
 
-This chapter assumes that you've followed the beginning of the
-:doc:`security chapter </book/security>` and have ``http_basic`` authentication
-working properly.
-
 First, enable form login under your firewall:
 
 .. configuration-block::
@@ -29,7 +25,6 @@ First, enable form login under your firewall:
             firewalls:
                 default:
                     anonymous: ~
-                    http_basic: ~
                     form_login:
                         login_path: /login
                         check_path: /login_check
@@ -47,7 +42,6 @@ First, enable form login under your firewall:
             <config>
                 <firewall name="default">
                     <anonymous />
-                    <http-basic />
                     <form-login login-path="/login" check-path="/login_check" />
                 </firewall>
             </config>
@@ -60,7 +54,6 @@ First, enable form login under your firewall:
             'firewalls' => array(
                 'default' => array(
                     'anonymous'  => null,
-                    'http_basic' => null,
                     'form_login' => array(
                         'login_path' => '/login',
                         'check_path' => '/login_check',