Revert "Added checkpoints with the new code from ChainPad"

This reverts commit da2bfe2de9.

NetfluxWebsocketSrv.js

@@ -87,27 +87,7 @@ dropUser = function (ctx, user) {
 };
 
 const getHistory = function (ctx, channelName, handler, cb) {
-    var messageBuf = [];
-    ctx.store.getMessages(channelName, function (msgStr) {
-        messageBuf.push(JSON.parse(msgStr));
-    }, function () {
-        var startPoint;
-        var cpCount = 0;
-        var msgBuff2 = [];
-        for (startPoint = messageBuf.length - 1; startPoint >= 0; startPoint--) {
-            var msg = messageBuf[startPoint];
-            msgBuff2.push(msg);
-            if (msg[2] === 'MSG' && msg[4].indexOf('cp|') === 0) {
-                cpCount++;
-                if (cpCount >= 2) {
-                    for (var x = msgBuff2.pop(); x; x = msgBuff2.pop()) { handler(x); }
-                    break;
-                }
-            }
-            //console.log(messageBuf[startPoint]);
-        }
-        cb();
-    });
+    ctx.store.getMessages(channelName, function (msgStr) { handler(JSON.parse(msgStr)); }, cb);
 };
 
 const randName = function () { return Crypto.randomBytes(16).toString('hex'); };