remove some XXX notes

lib/hk-util.js

@@ -44,7 +44,7 @@ const tryParse = function (Env, str) {
     try {
         return JSON.parse(str);
     } catch (err) {
-        Env.Log.error('HK_PARSE_ERROR', err); // XXX
+        Env.Log.error('HK_PARSE_ERROR', err);
     }
 };
 

lib/rpc.js

@@ -19,7 +19,7 @@ const Store = require("../storage/file");
 const BlobStore = require("../storage/blob");
 
 const UNAUTHENTICATED_CALLS = {
-    GET_FILE_SIZE: Pinning.getFileSize, // XXX TEST
+    GET_FILE_SIZE: Pinning.getFileSize,
     GET_MULTIPLE_FILE_SIZE: Pinning.getMultipleFileSize,
     GET_DELETED_PADS: Pinning.getDeletedPads,
     IS_CHANNEL_PINNED: Pinning.isChannelPinned,