Fix Polymer licensing issues

third_party/polymer/v1_0/components/promise-polyfill/Gruntfile.js

Index: third_party/polymer/v1_0/components/promise-polyfill/Gruntfile.js
diff --git a/third_party/polymer/v1_0/components/promise-polyfill/Gruntfile.js b/third_party/polymer/v1_0/components/promise-polyfill/Gruntfile.js
deleted file mode 100644
index 313844427b7e4a04a54f61d58ae9c57ef9b90b4e..0000000000000000000000000000000000000000
--- a/third_party/polymer/v1_0/components/promise-polyfill/Gruntfile.js
+++ /dev/null
@@ -1,40 +0,0 @@
-module.exports = function(grunt) {
-
-	grunt.initConfig({
-		pkg: grunt.file.readJSON('package.json'),
-
-		uglify: {
-			options: {
-				banner: '/*! <%= pkg.name %> <%= pkg.version %> */\n'
-			},
-			dist: {
-				files: {
-					'Promise.min.uglify.js': ['Promise.js']
-				}
-			}
-		},
-
-    closurecompiler: {
-      options: {
-        compilation_level: 'ADVANCED_OPTIMIZATIONS',
-      },
-      dist: {
-        files: {
-          'Promise.min.js': ['Promise.js']
-        }
-      }
-    },
-
-    bytesize: {
-      dist: {
-        src: ['Promise*.js']
-      }
-    }
-	});
-
-	grunt.loadNpmTasks('grunt-contrib-uglify');
-	grunt.loadNpmTasks('grunt-closurecompiler');
-	grunt.loadNpmTasks('grunt-bytesize');
-
-	grunt.registerTask('build', ['closurecompiler', 'bytesize']);
-};