JENKINS-61806 Remove footer timestamp CSS

war/src/main/less/modules/page-footer.less

@@ -35,17 +35,6 @@
   display: inline-block;
 }
 
-.page-footer__generated {
-  font-size: var(--font-size-xs);
-  font-weight: bold;
-}
-
-.page-footer .page-footer__generated-timestamp {
-  display: block;
-  font-weight: normal;
-  margin: 0;
-}
-
 .page-footer__links {
   &:not(:last-child) {
     border-right: 1px solid var(--breadcrumbs-bg);