Swapped app_id and dest_id in applicationUpdated

Trying to swap the two app_ids to fix error.
Cleaned up iwdp_on_applicationUpdated()

Author: jchuong

src/ios_webkit_debug_proxy.c

@@ -1389,7 +1389,6 @@ rpc_status iwdp_on_applicationSentData(rpc_t rpc,
 
 rpc_status iwdp_on_applicationUpdated(rpc_t rpc,
     const char *app_id, const char *dest_id) {
-  fprintf(stderr, "Removing app_id: %s, adding: %s\n", app_id, dest_id);
   rpc_status result = iwdp_remove_app_id(rpc, app_id);
   if (result) {
     // Error removing app_id

src/rpc.c

@@ -440,12 +440,11 @@ _rpc_applicationUpdated: <dict>
 rpc_status rpc_recv_applicationUpdated(rpc_t self, const plist_t args) {
   char *app_id = NULL;
   char *dest_id = NULL;
-  size_t length = 0;
   rpc_status ret;
   if (!rpc_dict_get_required_string(args, "WIRHostApplicationIdentifierKey",
+        &dest_id) &&
+      !rpc_dict_get_required_string(args, "WIRApplicationIdentifierKey",
         &app_id) &&
-      !rpc_dict_get_required_data(args, "WIRApplicationIdentifierKey",
-        &dest_id, &length) &&
       !self->on_applicationUpdated(self,
         app_id, dest_id)) {
     ret = RPC_SUCCESS;