Clean out old unused objects

client/components/controls/LibrarySortSelect.vue

@@ -56,9 +56,6 @@ export default {
     isPodcast() {
       return this.libraryMediaType === 'podcast'
     },
-    isMusic() {
-      return this.libraryMediaType === 'music'
-    },
     podcastItems() {
       return [
         {
@@ -148,40 +145,10 @@ export default {
         }
       ]
     },
-    musicItems() {
-      return [
-        {
-          text: this.$strings.LabelTitle,
-          value: 'media.metadata.title'
-        },
-        {
-          text: this.$strings.LabelAddedAt,
-          value: 'addedAt'
-        },
-        {
-          text: this.$strings.LabelSize,
-          value: 'size'
-        },
-        {
-          text: this.$strings.LabelDuration,
-          value: 'media.duration'
-        },
-        {
-          text: this.$strings.LabelFileBirthtime,
-          value: 'birthtimeMs'
-        },
-        {
-          text: this.$strings.LabelFileModified,
-          value: 'mtimeMs'
-        }
-      ]
-    },
     selectItems() {
       let items = null
       if (this.isPodcast) {
         items = this.podcastItems
-      } else if (this.isMusic) {
-        items = this.musicItems
       } else if (this.$store.getters['user/getUserSetting']('filterBy').startsWith('series.')) {
         items = this.seriesItems
       } else {