DEV: removes unused badge-selector (#27803)

app/assets/javascripts/discourse/app/components/badge-selector.hbs

@@ -1,6 +0,0 @@
-<input
-  type="text"
-  placeholder={{this.placeholder}}
-  name="badges"
-  class="ember-text-field badge-names"
-/>

app/assets/javascripts/discourse/app/components/badge-selector.js

@@ -1,57 +0,0 @@
-import Component from "@ember/component";
-import $ from "jquery";
-import { makeArray } from "discourse-common/lib/helpers";
-import { findRawTemplate } from "discourse-common/lib/raw-templates";
-import discourseComputed, {
-  observes,
-  on,
-} from "discourse-common/utils/decorators";
-import I18n from "discourse-i18n";
-
-export default Component.extend({
-  @discourseComputed("placeholderKey")
-  placeholder(placeholderKey) {
-    return placeholderKey ? I18n.t(placeholderKey) : "";
-  },
-
-  @observes("badgeNames")
-  _update() {
-    if (this.canReceiveUpdates === "true") {
-      this._initializeAutocomplete({ updateData: true });
-    }
-  },
-
-  @on("didInsertElement")
-  _initializeAutocomplete(opts) {
-    let selectedBadges;
-
-    $(this.element.querySelector("input")).autocomplete({
-      allowAny: false,
-      items: makeArray(this.badgeNames),
-      single: this.single,
-      updateData: opts && opts.updateData ? opts.updateData : false,
-      template: findRawTemplate("badge-selector-autocomplete"),
-
-      onChangeItems(items) {
-        selectedBadges = items;
-        this.set("badgeNames", items.join(","));
-      },
-
-      transformComplete(g) {
-        return g.name;
-      },
-
-      dataSource(term) {
-        return this.badgeFinder(term).then((badges) => {
-          if (!selectedBadges) {
-            return badges;
-          }
-
-          return badges.filter(
-            (badge) => !selectedBadges.any((s) => s === badge.name)
-          );
-        });
-      },
-    });
-  },
-});