issue: Remove Old Login Code

This removes old and tired code from the login pages where we throw
`Http::response(422);` to "prevent browsers from suggesting saving the
username and password". This is no longer the case as browsers no longer
play by these rules. The only way to properly do this nowadays is to set
an attribute on the form tag to disable autocomplete. We don't want to
do this either as that would prevent password managers from autofilling
the auth info.

Throwing a 422 code prevents some setups from accepting logins due to
4XX codes being error codes in nature. Removing this code seemingly has
no negative impact whatsoever.

A short backstory, this was [originally a 401
code](a99b9ce)
to prevent browsers from suggesting saving the auth info. Later it was
[changed to a 422
code](772d5c5)
to make IE play nice.

login.php

@@ -147,9 +147,6 @@
     $nav->setActiveNav('status');
 }
 
-// Browsers shouldn't suggest saving that username/password
-Http::response(422);
-
 require CLIENTINC_DIR.'header.inc.php';
 require CLIENTINC_DIR.$inc;
 require CLIENTINC_DIR.'footer.inc.php';

scp/login.php

@@ -131,9 +131,6 @@
     Http::redirect($dest);
 }
 
-// Browsers shouldn't suggest saving that username/password
-Http::response(422);
-
 define("OSTSCPINC",TRUE); //Make includes happy!
 include_once(INCLUDE_DIR.'staff/login.tpl.php');
 ?>