diff --git a/karma.conf.js b/karma.conf.js
deleted file mode 100644
index cfbeca0017..0000000000
--- a/karma.conf.js
+++ /dev/null
@@ -1,203 +0,0 @@
-// Karma configuration
-// Generated on Tue Dec 08 2015 23:01:01 GMT-0800 (Pacific Standard Time)
-
-module.exports = function (config) {
-  // Check out https://saucelabs.com/platforms for expanding browser coverage
-  // some browsers are disabled due to selenium fails to start browser instance.
-  // will be re enabled once issue's resolved.
-  var customLaunchers = {
-    sl_chrome: {
-      base: 'SauceLabs',
-      browserName: 'chrome',
-      version: '46'
-    },
-    sl_chrome_beta: {
-      base: 'SauceLabs',
-      browserName: 'chrome',
-      version: 'beta'
-    },
-    /*
-    sl_chrome_dev: {
-      base: 'SauceLabs',
-      browserName: 'chrome',
-      version: 'dev'
-    },*/
-    sl_firefox: {
-      base: 'SauceLabs',
-      browserName: 'firefox',
-      version: '44'
-    },
-    /*sl_firefox_beta: {
-      base: 'SauceLabs',
-      browserName: 'firefox',
-      version: 'beta'
-    },
-    sl_firefox_dev: {
-      base: 'SauceLabs',
-      browserName: 'firefox',
-      version: 'dev'
-    },*/
-    sl_safari7: {
-      base: 'SauceLabs',
-      browserName: 'safari',
-      platform: 'OS X 10.9',
-      version: '7'
-    },
-    sl_safari8: {
-      base: 'SauceLabs',
-      browserName: 'safari',
-      platform: 'OS X 10.10',
-      version: '8'
-    },
-    sl_safari9: {
-      base: 'SauceLabs',
-      browserName: 'safari',
-      platform: 'OS X 10.11',
-      version: '9.0'
-    },
-    sl_ios7: {
-      base: 'SauceLabs',
-      browserName: 'iphone',
-      platform: 'OS X 10.11',
-      version: '7.1'
-    },
-    sl_ios8: {
-      base: 'SauceLabs',
-      browserName: 'iphone',
-      platform: 'OS X 10.11',
-      version: '8.4'
-    },
-    sl_ios9: {
-      base: 'SauceLabs',
-      browserName: 'iphone',
-      platform: 'OS X 10.11',
-      version: '9.1'
-    },
-    sl_ie9: {
-      base: 'SauceLabs',
-      browserName: 'internet explorer',
-      platform: 'Windows 2008',
-      version: '9'
-    },
-    sl_ie10: {
-      base: 'SauceLabs',
-      browserName: 'internet explorer',
-      platform: 'Windows 2012',
-      version: '10'
-    },
-    sl_ie11: {
-      base: 'SauceLabs',
-      browserName: 'internet explorer',
-      platform: 'Windows 8.1',
-      version: '11'
-    },
-    sl_edge: {
-      base: 'SauceLabs',
-      browserName: 'microsoftedge',
-      platform: 'Windows 10',
-      version: '20.10240'
-    },
-    sl_android_4_1: {
-      base: 'SauceLabs',
-      browserName: 'android',
-      platform: 'Linux',
-      version: '4.1'
-    },
-    sl_android_4_2: {
-      base: 'SauceLabs',
-      browserName: 'android',
-      platform: 'Linux',
-      version: '4.2'
-    },
-    sl_android_4_3: {
-      base: 'SauceLabs',
-      browserName: 'android',
-      platform: 'Linux',
-      version: '4.3'
-    },
-    sl_android_4_4: {
-      base: 'SauceLabs',
-      browserName: 'android',
-      platform: 'Linux',
-      version: '4.4'
-    },
-    sl_android5: {
-      base: 'SauceLabs',
-      browserName: 'android',
-      platform: 'Linux',
-      version: '5.1'
-    }
-  };
-
-  config.set({
-
-    // base path that will be used to resolve all patterns (eg. files, exclude)
-    basePath: '',
-
-    // frameworks to use
-    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
-    frameworks: ['browserify', 'jasmine'],
-
-    // list of files / patterns to load in the browser
-    files: [
-      'node_modules/babel-polyfill/dist/polyfill.js',
-      'spec-js/helpers/marble-testing.js',
-      'spec-js/helpers/test-helper.js',
-      'spec-js/helpers/ajax-helper.js',
-      'spec-js/**/*-spec.js'
-    ],
-
-    // list of files to exclude
-    exclude: [
-    ],
-
-    // preprocess matching files before serving them to the browser
-    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
-    preprocessors: {
-      'spec-js/**/*.js': ['browserify']
-    },
-
-    // test results reporter to use
-    // possible values: 'dots', 'progress'
-    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
-    reporters: ['dots','saucelabs'],
-
-    // web server port
-    port: 9876,
-
-    // enable / disable colors in the output (reporters and logs)
-    colors: true,
-
-    // level of logging
-    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
-    logLevel: config.LOG_INFO,
-
-    // enable / disable watching file and executing tests whenever any file changes
-    autoWatch: false,
-
-    // start these browsers
-    // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
-    customLaunchers: customLaunchers,
-    browsers: process.env.TRAVIS ? Object.keys(customLaunchers) : ['Chrome'],
-
-    // Continuous Integration mode
-    // if true, Karma captures browsers, runs the tests and exits
-    singleRun: true,
-
-    // Concurrency level
-    // how many browser should be started simultanous
-    concurrency: 1,
-
-    browserNoActivityTimeout: 30000,
-
-    sauceLabs: {
-      testName: 'RxJS 5 browser test',
-      options: {
-        'command-timeout': 600,
-        'idle-timeout': 12000,
-        'max-duration': 10800,
-        'recordScreenshots': true
-      }
-    }
-  });
-};
\ No newline at end of file
diff --git a/spec/support/mocha.sauce.runner.js b/spec/support/mocha.sauce.runner.js
index a52d4d3694..9b21123a18 100644
--- a/spec/support/mocha.sauce.runner.js
+++ b/spec/support/mocha.sauce.runner.js
@@ -51,12 +51,6 @@ var customLaunchers = {
     platform: 'OS X 10.11',
     version: '9.0'
   },
-  sl_ios7: {
-    base: 'SauceLabs',
-    browserName: 'iphone',
-    platform: 'OS X 10.11',
-    version: '7.1'
-  },
   sl_ios8: {
     base: 'SauceLabs',
     browserName: 'iphone',