build(gulp): remove obsolete gulp transformer

gulpfile.js

@@ -29,7 +29,6 @@ var karma = require('karma').server;
 var minimist = require('minimist');
 var runServerDartTests = require('./tools/build/run_server_dart_tests');
 var sourcemaps = require('gulp-sourcemaps');
-var transformCJSTests = require('./tools/build/transformCJSTests');
 var tsc = require('gulp-typescript');
 var util = require('./tools/build/util');
 var bundler = require('./tools/build/bundle');

tools/build/transformCJSTests.js

@@ -1,16 +0,0 @@
-var through2 = require('through2');
-
-module.exports = function() {
-  return through2.obj(function(file, encoding, done) {
-    if (file.relative.substring(file.relative.length - 8) == "_spec.js") {
-      var content = 
-      "var parse5Adapter = require('angular2/src/dom/parse5_adapter');\r\n"
-      + "parse5Adapter.Parse5DomAdapter.makeCurrent();\r\n"
-      + String(file.contents)
-      + "\r\n main();";
-      file.contents = new Buffer(content);
-    }
-    this.push(file);
-    done();
-  });
-}