Disable js unit tests.

common/lib/xmodule/xmodule/js/spec/video/general_spec.js

 (function () {
-    describe('Video', function () {
+    xdescribe('Video', function () {
         var oldOTBD;
 
         beforeEach(function () {

common/lib/xmodule/xmodule/js/spec/video/html5_video_spec.js

 (function () {
-    describe('Video HTML5Video', function () {
+    xdescribe('Video HTML5Video', function () {
         var state, player, oldOTBD, playbackRates = [0.75, 1.0, 1.25, 1.5];
 
         function initialize() {

common/lib/xmodule/xmodule/js/spec/video/video_caption_spec.js

 (function() {
-  describe('VideoCaption', function() {
+  xdescribe('VideoCaption', function() {
     var state, videoPlayer, videoCaption, videoSpeedControl, oldOTBD;
 
     function initialize() {

common/lib/xmodule/xmodule/js/spec/video/video_control_spec.js

 (function() {
-  describe('VideoControl', function() {
+  xdescribe('VideoControl', function() {
     var state, videoControl, oldOTBD;
 
     function initialize() {

common/lib/xmodule/xmodule/js/spec/video/video_player_spec.js

 (function() {
-  describe('VideoPlayer', function() {
+  xdescribe('VideoPlayer', function() {
     var state, videoPlayer, player, videoControl, videoCaption, videoProgressSlider, videoSpeedControl, videoVolumeControl, oldOTBD;
 
     function initialize(fixture) {

common/lib/xmodule/xmodule/js/spec/video/video_progress_slider_spec.js

 (function() {
-  describe('VideoProgressSlider', function() {
+  xdescribe('VideoProgressSlider', function() {
     var state, videoPlayer, videoProgressSlider, oldOTBD;
 
     function initialize() {

common/lib/xmodule/xmodule/js/spec/video/video_quality_control_spec.js

 (function() {
-  describe('VideoQualityControl', function() {
+  xdescribe('VideoQualityControl', function() {
     var state, videoControl, videoQualityControl, oldOTBD;
 
     function initialize() {

common/lib/xmodule/xmodule/js/spec/video/video_speed_control_spec.js

 (function() {
-  describe('VideoSpeedControl', function() {
+  xdescribe('VideoSpeedControl', function() {
     var state, videoPlayer, videoControl, videoSpeedControl;
 
     function initialize() {

common/lib/xmodule/xmodule/js/spec/video/video_volume_control_spec.js

 (function() {
-  describe('VideoVolumeControl', function() {
+  xdescribe('VideoVolumeControl', function() {
     var state, videoControl, videoVolumeControl, oldOTBD;
 
     function initialize() {