MT#64282 replace redirect with ajax_logout separation

* a better way is to leave /logout as is and instead
  separate ajax_logout so that it's not chained from /logout
  anymore, resulting in 200 OK with empty application/json response,
  and without redirects by default

Change-Id: Ide4f3845532e176e6866ebe61155e04d02aa3fbd
(cherry picked from commit c48355ca03)
(cherry picked from commit c830a194d0)

lib/NGCP/Panel/Controller/Logout.pm

@@ -24,11 +24,14 @@ Catalyst Controller.
 =cut
 
 sub logout_index :Path {
+    my ($self, $c) = @_;
+}
+
+sub logout :Chained('/') :PathPart('logout') :Args(0) {
     my ( $self, $c, $realm ) = @_;
 
     $c->logout;
-    my $redirect = $c->req->params->{redirect} // 1;
-    $c->response->redirect($c->uri_for('/login')) if $redirect;
+    $c->response->redirect($c->uri_for('/login'));
 }
 
 sub ajax_logout :Chained('/') :PathPart('ajax_logout') :Args(0) {