Remove snapshot log parsing and option from tools.

tools/profviz/worker.js

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 88 matching lines @@
        function() {
          var profile = "";
          print = function(text) { profile += text + "\n"; };
          // Dummy entries provider, as we cannot call nm.
          var entriesProvider = new UnixCppEntriesProvider("", "");
          var targetRootFS = "";
          var separateIc = false;
          var callGraphSize = 5;
          var ignoreUnknown = true;
          var stateFilter = null;
-         var snapshotLogProcessor = null;
          var range = range_start_override + "," + range_end_override;
 
          var tickProcessor = new TickProcessor(entriesProvider,
                                                separateIc,
                                                callGraphSize,
                                                ignoreUnknown,
                                                stateFilter,
-                                               snapshotLogProcessor,
                                                distortion,
                                                range);
          for (var i = 0; i < content_lines.length; i++) {
            tickProcessor.processLogLine(content_lines[i]);
          }
          tickProcessor.printStatistics();
          displayprof(profile);
        });
 
   var input_file_name = "input_temp";
@@ skipping 36 matching lines @@
 
 var Module = {
     "noInitialRun": true,
     print: function(text) {
         self.postMessage({"call": "error", "args": text});
     },
     printErr: function(text) {
         self.postMessage({"call": "error", "args": text});
     },
 };