Remove dead a/b testing (sixpack) code

nuxt.config.js

@@ -119,7 +119,6 @@ export default {
     dirs: [{ path: '~/components', extensions: ['vue'], pathPrefix: false }],
   },
   plugins: [
-    { src: '~/plugins/ab-test-init.js', mode: 'client' },
     { src: '~/plugins/ga.js', mode: 'client' },
     { src: '~/plugins/url-change.js' },
     { src: '~/plugins/migration-notice.js' },

src/constants/action-types.js

@@ -6,7 +6,6 @@ export const FETCH_MEDIA = 'FETCH_MEDIA'
 export const FETCH_SINGLE_MEDIA_TYPE = 'FETCH_SINGLE_MEDIA_TYPE'
 export const COPY_ATTRIBUTION = 'COPY_ATTRIBUTION'
 export const REPORT_BUG = 'REPORT_BUG'
-export const CONVERT_AB_TEST_EXPERIMENT = 'CONVERT_AB_TEST_EXPERIMENT'
 export const HANDLE_MEDIA_ERROR = 'HANDLE_MEDIA_ERROR'
 export const TOGGLE_FILTER = 'TOGGLE_FILTER'
 export const UPDATE_SEARCH_TYPE = 'UPDATE_SEARCH_TYPE'

src/constants/mutation-types.js

@@ -15,7 +15,6 @@ export const SET_MEDIA = 'SET_MEDIA'
 export const REPORT_BUG_START = 'REPORT_BUG_START'
 export const REPORT_BUG_END = 'REPORT_BUG_END'
 export const REPORT_BUG_FAILED = 'REPORT_BUG_FAILED'
-export const JOINED_AB_TEST_EXPERIMENT = 'JOINED_AB_TEST_EXPERIMENT'
 export const SET_SHOW_NOTIFICATION = 'SET_SHOW_NOTIFICATION'
 export const SET_EMBEDDED = 'SET_EMBEDDED'
 export const SET_REFERRED = 'SET_REFERRED'

src/constants/store-modules.js

@@ -1,5 +1,4 @@
 export const RELATED = 'related'
-export const ABTEST = 'abtest'
 export const ACTIVE = 'active'
 export const ATTRIBUTION = 'attribution'
 export const PROVIDER = 'provider'

src/store/user.js

@@ -1,6 +1,5 @@
 import SessionId from '~/utils/session-id'
 
 export const state = () => ({
-  abSessionId: SessionId('abSessionId', true),
   usageSessionId: SessionId('usageSessionId'),
 })

src/utils/session-id.js

@@ -7,7 +7,7 @@ const COOKIE_PREFIX = 'openverse_'
 const generateSessionId = () => uuidv4()
 
 /**
- * Store a session in in a cookie for a/b tests and usage analytics. By default
+ * Store a session in in a cookie for usage analytics. By default
  * it expires when a user closes the browser. If hasExpirationDate is set to
  * true, the cookie will last for 7 days, which is determined by
  * `COOKIE_EXPIRY_DAYS`.