include spec_helper within karma config rather than each individual test

config/karma.config.js

@@ -6,13 +6,14 @@ var ROOT_PATH = path.resolve(__dirname, '..');
 module.exports = function(config) {
   config.set({
     basePath: ROOT_PATH,
-    frameworks: ['jquery-2.1.0', 'jasmine'],
+    frameworks: ['jasmine'],
     files: [
+      'spec/javascripts/spec_helper.js',
       'spec/javascripts/**/*_spec.js?(.es6)',
       { pattern: 'spec/javascripts/fixtures/**/*@(.json|.html|.html.raw)', included: false },
     ],
     preprocessors: {
-      'spec/javascripts/**/*_spec.js?(.es6)': ['webpack'],
+      'spec/javascripts/**/*.js?(.es6)': ['webpack'],
     },
     webpack: webpackConfig,
     webpackMiddleware: { stats: 'errors-only' },

spec/javascripts/abuse_reports_spec.js.es6

-require('./spec_helper');
 require('lib/utils/text_utility');
 require('abuse_reports');

spec/javascripts/activities_spec.js.es6

 /* eslint-disable no-unused-expressions, comma-spacing, prefer-const, no-prototype-builtins, semi, no-new, keyword-spacing, no-plusplus, no-shadow, max-len */
-require('./spec_helper');
 window.Cookies = require('vendor/js.cookie');
 require('vendor/jquery.endless-scroll.js');
 require('pager');

spec/javascripts/awards_handler_spec.js

 /* eslint-disable space-before-function-paren, no-var, one-var, one-var-declaration-per-line, no-unused-expressions, comma-dangle, new-parens, no-unused-vars, quotes, jasmine/no-spec-dupes, prefer-template, padded-blocks, max-len */
 /* global AwardsHandler */
-require('./spec_helper');
 require('awards_handler');
 window.Cookies = require('vendor/js.cookie');
 require('./fixtures/emoji_menu');

spec/javascripts/behaviors/autosize_spec.js

 /* eslint-disable space-before-function-paren, no-var, comma-dangle, no-return-assign, padded-blocks, max-len */
-require('../spec_helper');
 require('behaviors/autosize');
 (function() {

spec/javascripts/behaviors/quick_submit_spec.js

 /* eslint-disable space-before-function-paren, no-var, no-return-assign, comma-dangle, jasmine/no-spec-dupes, new-cap, padded-blocks, max-len */
-require('../spec_helper');
 require('behaviors/quick_submit');
 (function() {

spec/javascripts/behaviors/requires_input_spec.js

 /* eslint-disable space-before-function-paren, no-var, padded-blocks */
-require('../spec_helper');
 require('behaviors/requires_input');
 (function() {

spec/javascripts/boards/boards_store_spec.js.es6

@@ -6,7 +6,6 @@
 /* global listObj */
 /* global listObjDuplicate */
-require('../spec_helper');
 require('jquery-ujs');
 window.Cookies = require('vendor/js.cookie');
 window.Vue = require('vue');

spec/javascripts/boards/issue_spec.js.es6

@@ -2,7 +2,6 @@
 /* global BoardService */
 /* global ListIssue */
-require('../spec_helper');
 require('jquery-ujs');
 window.Cookies = require('vendor/js.cookie');
 window.Vue = require('vue');

spec/javascripts/boards/list_spec.js.es6

@@ -5,7 +5,6 @@
 /* global List */
 /* global listObj */
-require('../spec_helper');
 require('jquery-ujs');
 window.Cookies = require('vendor/js.cookie');
 window.Vue = require('vue');

spec/javascripts/bootstrap_linked_tabs_spec.js.es6

-require('./spec_helper');
 require('lib/utils/bootstrap_linked_tabs');
 (() => {

spec/javascripts/build_spec.js.es6

@@ -2,7 +2,6 @@
 /* global Build */
 /* global Turbolinks */
-require('./spec_helper');
 require('lib/utils/datetime_utility');
 require('build');
 require('breakpoints');

spec/javascripts/dashboard_spec.js.es6

 /* eslint-disable no-new, padded-blocks */
-require('./spec_helper');
 require('sidebar');
 window.Cookies = require('vendor/js.cookie');
 require('lib/utils/text_utility');

spec/javascripts/datetime_utility_spec.js.es6

-require('./spec_helper');
 require('lib/utils/datetime_utility');
 (() => {

spec/javascripts/diff_comments_store_spec.js.es6

 /* eslint-disable no-extra-semi, jasmine/no-global-setup, dot-notation, jasmine/no-expect-in-setup-teardown, max-len */
 /* global CommentsStore */
-require('./spec_helper');
 require('diff_notes/models/discussion');
 require('diff_notes/models/note');
 require('diff_notes/stores/comments');

spec/javascripts/environments/environment_actions_spec.js.es6

-require('../spec_helper');
 window.Vue = require('vue');
 require('environments/components/environment_actions');

spec/javascripts/environments/environment_external_url_spec.js.es6

-require('../spec_helper');
 window.Vue = require('vue');
 require('environments/components/environment_external_url');

spec/javascripts/environments/environment_item_spec.js.es6

-require('../spec_helper');
 window.Vue = require('vue');
 window.timeago = require('vendor/timeago');
 require('environments/components/environment_item');

spec/javascripts/environments/environment_rollback_spec.js.es6

-require('../spec_helper');
 window.Vue = require('vue');
 require('environments/components/environment_rollback');

spec/javascripts/environments/environment_stop_spec.js.es6

-require('../spec_helper');
 window.Vue = require('vue');
 require('environments/components/environment_stop');