Remove extra line in settings-subpage.jelly

Author: Heller07

core/src/main/resources/lib/layout/settings-subpage.jelly

@@ -66,7 +66,6 @@ THE SOFTWARE.
             permissions="${attrs.permissions}"
             type="${newManageJenkins ? 'two-column' : 'one-column'}">
 
-
     <j:if test="${attrs.includeBreadcrumb}">
       <!-- Hacky - this will be improved in subsequent PRs -->
       <j:choose>