chore(build): remove ngdocs

- Remove ngdocs since it is not functional

Closes #4064
Closes #3457

Gruntfile.js

@@ -12,7 +12,6 @@ module.exports = function(grunt) {
   grunt.loadNpmTasks('grunt-html2js');
   grunt.loadNpmTasks('grunt-karma');
   grunt.loadNpmTasks('grunt-conventional-changelog');
-  grunt.loadNpmTasks('grunt-ngdocs');
   grunt.loadNpmTasks('grunt-ddescribe-iit');
 
   // Project configuration.
@@ -179,25 +178,6 @@ module.exports = function(grunt) {
         'git commit package.json -m "chore(release): Starting v%version%"'
       ]
     },
-    ngdocs: {
-      options: {
-        dest: 'dist/docs',
-        scripts: [
-          'angular.js',
-          '<%= concat.dist_tpls.dest %>'
-        ],
-        styles: [
-          'docs/css/style.css'
-        ],
-        navTemplate: 'docs/nav.html',
-        title: 'ui-bootstrap',
-        html5Mode: false
-      },
-      api: {
-        src: ['src/**/*.js', 'src/**/*.ngdoc'],
-        title: 'API Documentation'
-      }
-    },
     'ddescribe-iit': {
       files: [
         'src/**/*.spec.js'

package.json

@@ -21,7 +21,6 @@
     "grunt-ddescribe-iit": "0.0.6",
     "grunt-html2js": "^0.3.0",
     "grunt-karma": "^0.10.1",
-    "grunt-ngdocs": "~0.1.1",
     "jasmine-core": "^2.2.0",
     "karma": "^0.12.31",
     "karma-chrome-launcher": "^0.1.7",