start reviewing and removing XXX notes

lib/commands/pin-rpc.js

@@ -547,8 +547,9 @@ const deferResponse = function (Env, channel, cb) {
 };
 */
 
+// FIXME this will be removed from the client
 Pinning.isChannelPinned = function (Env, channel, cb) {
-    return void cb(void 0, true); // XXX
+    return void cb(void 0, true);
 /*
     // if the pins are fully loaded then you can answer yes/no definitively
     if (Env.pinsLoaded) {