PHP Parse error: syntax error, unexpected 'public' (T_PUBLIC) in /var/www/omp/plugins/importexport/datacite/DataciteExportPlugin.inc.php

[MarkTr]

Commit b29b8df on stable_3_3_0 introduces an error while loading the plugin, because of a missing }
but actually it seems to unnecessarily duplicate an if-statement.
attached patch fixes this (If I find out how to add one here).