Remove experimental features and experimental ereader setting

client/store/index.js

@@ -23,7 +23,6 @@ export const state = () => ({
   developerMode: false,
   processingBatch: false,
   previousPath: '/',
-  showExperimentalFeatures: false,
   bookshelfBookIds: [],
   episodeTableEpisodeIds: [],
   openModal: null,
@@ -231,10 +230,6 @@ export const mutations = {
   setProcessingBatch(state, val) {
     state.processingBatch = val
   },
-  setExperimentalFeatures(state, val) {
-    state.showExperimentalFeatures = val
-    localStorage.setItem('experimental', val ? 1 : 0)
-  },
   setOpenModal(state, val) {
     state.openModal = val
   },