Remove hard-coded sourceMappingURL from tags-input.less (#14877)

GitOrigin-RevId: b1e831a5724c2631ab39bee7865debf6918fa6b4

services/web/frontend/stylesheets/components/tags-input.less

@@ -173,5 +173,3 @@
   font-weight: bold;
   font-style: normal;
 }
-
-/*# sourceMappingURL=ng-tags-input.css.map */