Fix EZP-23725: Wrong path_identification_string when editing in front…

…end siteaccess using PathPrefix and RootNode

> https://jira.ez.no/browse/EZP-23725

Alternative of ezsystems/ezpublish-legacy#1148,
ezsystems/ezpublish-legacy#1140 and
ezsystems/ezpublish-legacy#1145

Root cause of this issue is that `RootNode` is wrongly injected from
LegacyBundle when working in multisite, as it's has no purpose in that
regard.

Note that patch from
ezsystems/ezpublish-legacy#1140 needs to be
reverted (it will be once this PR is merged).

Tested and working as expected.

bundle/LegacyMapper/Configuration.php

@@ -310,7 +310,6 @@ function ( $value )
             'logfile.ini/AccessLogFileSettings/PathPrefix'  => $pathPrefix,
             'site.ini/SiteSettings/IndexPage'               => $indexPage !== null ? $indexPage : "/content/view/full/$rootLocationId/",
             'site.ini/SiteSettings/DefaultPage'             => $defaultPage !== null ? $defaultPage : "/content/view/full/$rootLocationId/",
-            'content.ini/NodeSettings/RootNode'             => $rootLocationId,
         );
     }
 }