[minor] clean up comments.

lib/winston-mongodb.js

@@ -172,17 +172,10 @@ MongoDB.prototype.query = function (options, callback) {
 
   var self = this,
       options = this.normalizeQuery(options),
-      query = {},
-      opt = {},
+      query,
+      opt,
       fields;
 
-  // if (options.fields) {
-  //   fields = {};
-  //   options.fields.forEach(function (key) {
-  //     fields[key] = 1;
-  //   });
-  // }
-
   query = {
     timestamp: {
       $gte: options.from,
@@ -191,21 +184,12 @@ MongoDB.prototype.query = function (options, callback) {
   };
 
   opt = {
-    // .skip(options.start)
     skip: options.start,
-    // .limit(options.rows)
     limit: options.rows,
-    // .sort({timestamp: -1})
     sort: { timestamp: options.order === 'desc' ? -1 : 1 }
   };
 
-  // if (fields) {
-  //   // col.find({}, {field: 1}, {})
-  //   opt.fields = fields;
-  // }
-
   if (options.fields) {
-    // col.find({}, {field: 1}, {})
     opt.fields = options.fields;
   }
 
@@ -250,10 +234,6 @@ MongoDB.prototype.stream = function (options, stream) {
     start = null;
   }
 
-  if (start == null) {
-    ; // get collection size
-  }
-
   var opt = {
     skip: start || 0,
     tailable: true
@@ -270,6 +250,7 @@ MongoDB.prototype.stream = function (options, stream) {
     //   next();
     // });
 
+    // TODO: implement start
     // if (start == null) {
     //   col.count({}, function (err, count) {
     //     opt.skip = count;
@@ -277,7 +258,6 @@ MongoDB.prototype.stream = function (options, stream) {
     //   });
     // }
 
-    // .sort({ $natural: 1 })
     var cursor = col.find({}, opt);
 
     // tail cursor
@@ -299,7 +279,6 @@ MongoDB.prototype.stream = function (options, stream) {
 
       // hack because isCapped doesn't work
       if (err.message === 'tailable cursor requested on non capped collection') {
-      //if (~(err.message + '').indexOf('non capped collection')) {
         tail.destroy();
         self.streamPoll(options, stream);
         return;