Revert "Add unprefixed EME tests for LoadSession()"

media/test/data/eme_player_js/test_config.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Test configuration used by test page to configure the player app and other
 // test specific configurations.
 function TestConfig() {
   this.mediaFile = null;
   this.keySystem = null;
   this.mediaType = null;
@@ skipping 10 matching lines @@
   // space so decodeURIComponent functions properly.
   var decodeURI = function decodeURI(s) {
       return decodeURIComponent(s.replace(/\+/g, ' '));
   };
   var match;
   while (match = r.exec(window.location.search.substring(1)))
     this[decodeURI(match[1])] = decodeURI(match[2]);
   this.useMSE = this.useMSE == '1' || this.useMSE == 'true';
   this.usePrefixedEME =
       this.usePrefixedEME == '1' || this.usePrefixedEME == 'true';
-
-  // Validate that the prefixed/unprefixed EME is available.
-  if (this.usePrefixedEME) {
-    if (EME_DISABLED_OPTIONS.indexOf(EME_PREFIXED_VERSION) >= 0)
-      Utils.failTest('Prefixed EME not available.')
-  } else {
-    if (EME_DISABLED_OPTIONS.indexOf(EME_UNPREFIXED_VERSION) >= 0)
-      Utils.failTest('Unprefixed EME not available.')
-  }
 };
 
 TestConfig.updateDocument = function() {
   this.loadQueryParams();
   Utils.addOptions(KEYSYSTEM_ELEMENT_ID, KEY_SYSTEMS);
   Utils.addOptions(MEDIA_TYPE_ELEMENT_ID, MEDIA_TYPES);
   Utils.addOptions(USE_PREFIXED_EME_ID, EME_VERSIONS_OPTIONS,
                    EME_DISABLED_OPTIONS);
 
   document.getElementById(MEDIA_FILE_ELEMENT_ID).value =
@@ skipping 15 matching lines @@
   // Reload test configuration from document.
   this.mediaFile = document.getElementById(MEDIA_FILE_ELEMENT_ID).value;
   this.keySystem = document.getElementById(KEYSYSTEM_ELEMENT_ID).value;
   this.mediaType = document.getElementById(MEDIA_TYPE_ELEMENT_ID).value;
   this.useMSE = document.getElementById(USE_MSE_ELEMENT_ID).value == 'true';
   this.usePrefixedEME = document.getElementById(USE_PREFIXED_EME_ID).value ==
       EME_PREFIXED_VERSION;
   this.licenseServerURL =
       document.getElementById(LICENSE_SERVER_ELEMENT_ID).value;
 };