Remove static Resources.isContainedIn API

jetty-core/jetty-util/src/main/java/org/eclipse/jetty/util/resource/Resource.java

@@ -418,19 +418,6 @@ public abstract class Resource implements ResourceFactory
         return newResource(url);
     }
 
-    /**
-     * Return true if the Resource r is contained in the Resource containingResource, either because
-     * containingResource is a folder or a jar file or any form of resource capable of containing other resources.
-     *
-     * @param r the contained resource
-     * @param containingResource the containing resource
-     * @return true if the Resource is contained, false otherwise
-     */
-    public static boolean isContainedIn(Resource r, Resource containingResource)
-    {
-        return r.isContainedIn(containingResource);
-    }
-
     /**
      * Return the Path corresponding to this resource.
      *

jetty-ee10/jetty-ee10-webapp/src/main/java/org/eclipse/jetty/ee10/webapp/MetaData.java

@@ -405,7 +405,7 @@ public class MetaData
         {
             for (Resource r : resources)
             {
-                if (Resource.isContainedIn(resource, r))
+                if (resource.isContainedIn(r))
                 {
                     enclosingResource = r;
                     break;

jetty-ee9/jetty-ee9-webapp/src/main/java/org/eclipse/jetty/ee9/webapp/MetaData.java

@@ -405,7 +405,7 @@ public class MetaData
         {
             for (Resource r : resources)
             {
-                if (Resource.isContainedIn(resource, r))
+                if (resource.isContainedIn(r))
                 {
                     enclosingResource = r;
                     break;