III-3347 Update or remove dependencies that depend on graceful-fs@2 and

@3

For node 10+ support, graceful-fs has to be updated to 4+. So all our dependencies using graceful-fs have to be updated to a version that uses @4.

grunt-google-cdn is also affected but has not been updated in 6 years. See btford/grunt-google-cdn#71
Since it's not a must-have, I've removed it.

Gruntfile.js

@@ -348,13 +348,6 @@ module.exports = function (grunt) {
       }
     },
 
-    // Replace Google CDN references
-    cdnify: {
-      dist: {
-        html: ['<%= yeoman.dist %>/*.html']
-      }
-    },
-
     // Copies remaining files to places other tasks can use
     copy: {
       dist: {
@@ -529,7 +522,6 @@ module.exports = function (grunt) {
     'concat',
     'ngAnnotate:src',
     'copy:dist',
-    'cdnify',
     'cssmin',
     'uglify',
     'filerev',