DEV: Remove the last `transpile_js` mentions (#26263)

lib/plugin/metadata.rb

@@ -101,18 +101,7 @@ class Plugin::Metadata
       ],
     )
 
-  FIELDS ||= %i[
-    name
-    about
-    version
-    authors
-    contact_emails
-    url
-    required_version
-    transpile_js
-    meta_topic_id
-    label
-  ]
+  FIELDS ||= %i[name about version authors contact_emails url required_version meta_topic_id label]
   attr_accessor(*FIELDS)
 
   MAX_FIELD_LENGTHS ||= {

plugins/chat/plugin.rb

@@ -6,7 +6,6 @@
 # version: 0.4
 # authors: Kane York, Mark VanLandingham, Martin Brennan, Joffrey Jaffeux
 # url: https://github.com/discourse/discourse/tree/main/plugins/chat
-# transpile_js: true
 # meta_topic_id: 230881
 
 enabled_site_setting :chat_enabled

plugins/spoiler-alert/plugin.rb

@@ -6,7 +6,6 @@
 # version: 1.1.0
 # authors: Discourse Team
 # url: https://github.com/discourse/discourse/tree/main/plugins/spoiler-alert
-# transpile_js: true
 
 enabled_site_setting :spoiler_enabled