Bug 1496062 - Remove add-on type specific search labels. r=mstriemer,fluent-reviewers

Differential Revision: https://phabricator.services.mozilla.com/D72390

toolkit/locales/en-US/toolkit/about/aboutAddons.ftl

@@ -485,8 +485,6 @@ updates-heading = Manage Your Updates
 discover-heading = Personalize Your { -brand-short-name }
 shortcuts-heading = Manage Extension Shortcuts
 
-theme-heading-search-label = Find more themes
-extension-heading-search-label = Find more extensions
 default-heading-search-label = Find more add-ons
 addons-heading-search-input =
     .placeholder = Search addons.mozilla.org

toolkit/mozapps/extensions/content/aboutaddons.html

@@ -65,7 +65,7 @@
     <template name="addon-page-header">
       <div class="sticky-container">
         <div class="main-search">
-          <label for="search-addons" class="search-label"></label>
+          <label for="search-addons" class="search-label" data-l10n-id="default-heading-search-label"></label>
           <search-addons data-l10n-id="search-header-shortcut" data-l10n-attrs="key"></search-addons>
         </div>
         <div class="main-heading">

toolkit/mozapps/extensions/content/aboutaddons.js

@@ -1302,7 +1302,6 @@ class AddonPageHeader extends HTMLElement {
     if (this.childElementCount === 0) {
       this.appendChild(importTemplate("addon-page-header"));
       this.heading = this.querySelector(".header-name");
-      this.searchLabel = this.querySelector(".search-label");
       this.backButton = this.querySelector(".back-button");
       this.pageOptionsMenuButton = this.querySelector(
         '[action="page-options"]'
@@ -1343,17 +1342,6 @@ class AddonPageHeader extends HTMLElement {
     if (viewType !== "detail") {
       document.l10n.setAttributes(this.heading, `${viewType}-heading`);
     }
-
-    let customSearchLabelTypes = {
-      shortcuts: "extension",
-      extension: "extension",
-      theme: "theme",
-    };
-    let searchLabelType = customSearchLabelTypes[viewType] || "default";
-    document.l10n.setAttributes(
-      this.searchLabel,
-      `${searchLabelType}-heading-search-label`
-    );
   }
 
   handleEvent(e) {