filter out unconfigured example files

examples/demo-template/admin-access-app/src/main/webapp/WEB-INF/web.xml.unconfigured

@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<web-app xmlns="http://java.sun.com/xml/ns/javaee"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
-         version="3.0">
-
-    <module-name>admin-access</module-name>
-
-</web-app>