Index: trunk/resources/data/maps.xsd
===================================================================
--- trunk/resources/data/maps.xsd	(revision 16112)
+++ trunk/resources/data/maps.xsd	(revision 16117)
@@ -745,5 +745,4 @@
                         </xs:choice>
                     </xs:sequence>
-                    <xs:attribute name="last-check" type="xs:date" use="optional" />
                     <xs:attribute name="eli-best" type="xs:boolean" use="optional" />
                     <xs:attribute name="overlay" type="xs:boolean" use="optional" />