MT#63171 XMLRPC2DI: fix dtor ordering

The `di_method` object accesses fields of the `s` server in its dtor.
Therefore delete that one first, and `s` second.

Change-Id: Ib5f86753c7801b0b67d92e4c0f97464c2aecdaed

apps/xmlrpc2di/XMLRPC2DI.h

@@ -136,12 +136,12 @@ class XMLRPC2DIServer
   ~XMLRPC2DIServer() {
     stop();
     join();
-    if (s) {
-      delete s;
-    }
     if (di_method) {
       delete di_method;
     }
+    if (s) {
+      delete s;
+    }
   }
 
   bool initialize();