* remove cat_password check in Shibboleth Auth Plugin as not every ILS...

* remove cat_password check in Shibboleth Auth Plugin as not every ILS requiress a password (consistent requirements according to ILSAuthenticator)

module/VuFind/src/VuFind/Auth/Shibboleth.php

@@ -122,7 +122,7 @@ class Shibboleth extends AbstractBase
         }
 
         // Save credentials if applicable:
-        if (!empty($catPassword) && !empty($user->cat_username)) {
+        if (!empty($user->cat_username)) {
             $user->saveCredentials($user->cat_username, $catPassword);
         }