[Cleanup] Remove legacy api code

app/models/post.rb

@@ -1552,35 +1552,6 @@ class Post < ApplicationRecord
       hash
     end
 
-    def legacy_attributes
-      hash = {
-          "has_comments" => last_commented_at.present?,
-          "parent_id" => parent_id,
-          "status" => status,
-          "has_children" => has_children?,
-          "created_at" => created_at.to_formatted_s(:db),
-          "has_notes" => has_notes?,
-          "rating" => rating,
-          "author" => uploader_name,
-          "creator_id" => uploader_id,
-          "width" => image_width,
-          "source" => source,
-          "score" => score,
-          "tags" => tag_string,
-          "height" => image_height,
-          "file_size" => file_size,
-          "id" => id
-      }
-
-      if visible?
-        hash["file_url"] = file_url
-        hash["preview_url"] = preview_file_url
-        hash["md5"] = md5
-      end
-
-      hash
-    end
-
     def status
       if is_pending?
         "pending"

app/models/tag.rb

@@ -64,19 +64,6 @@ class Tag < ApplicationRecord
 
   before_save :update_category, if: :category_changed?
 
-  module ApiMethods
-    def to_legacy_json
-      return {
-          "name" => name,
-          "id" => id,
-          "created_at" => created_at.try(:strftime, "%Y-%m-%d %H:%M"),
-          "count" => post_count,
-          "type" => category,
-          "ambiguous" => false
-      }.to_json
-    end
-  end
-
   class CategoryMapping
     TagCategory.reverse_mapping.each do |value, category|
       define_method(category) do
@@ -1196,7 +1183,6 @@ class Tag < ApplicationRecord
     true
   end
 
-  include ApiMethods
   include CountMethods
   include CategoryMethods
   extend StatisticsMethods

app/models/user.rb

@@ -693,15 +693,6 @@ class User < ApplicationRecord
         :neutral_feedback_count, :negative_feedback_count, :upload_limit
       ]
     end
-
-    def to_legacy_json
-      return {
-        "name" => name,
-        "id" => id,
-        "level" => level,
-        "created_at" => created_at.strftime("%Y-%m-%d %H:%M")
-      }.to_json
-    end
   end
 
   module CountMethods

app/views/legacy/artists.json.erb

@@ -1 +0,0 @@
-[<%= raw @artists.map(&:to_json).join(",") %>]

app/views/legacy/artists.xml.erb

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<artists type="array">
-  <% @artists.each do |artist| %>
-    <artist group_name="<%= artist.group_name %>" other_names="<%= artist.other_names %>" urls="<%= artist.urls.map {|x| x.url}.join(" ") %>" is_active="<%= artist.is_active? %>" name="<%= artist.name %>" updater_id="0" id="<%= artist.id %>" version="0"/>
-  <% end %>
-</artists>

app/views/legacy/tags.json.erb

@@ -1 +0,0 @@
-[<%= @tags.map {|x| x.to_legacy_json}.join(", ").html_safe %>]

app/views/legacy/tags.xml.erb

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<tags type="array">
-  <% @tags.each do |tag| %>
-    <tag name="<%= tag.name %>" id="<%= tag.id %>" ambiguous="false" created_at="<%= tag.created_at.try(:strftime, '%Y-%m-%d %H:%M') %>" count="<%= tag.post_count %>" type="<%= tag.category %>"></tag>
-  <% end %>
-</tags>

app/views/legacy/users.json.erb

@@ -1 +0,0 @@
-[<%= @users.map {|x| x.to_legacy_json}.join(", ").html_safe %>]

app/views/legacy/users.xml.erb

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<users type="array">
-  <% @users.each do |user| %>
-    <user name="<%= user.name %>" id="<%= user.id %>" created_at="<%= user.created_at.strftime('%Y-%m-%d %H:%M') %>" level="<%= user.level %>"></user>
-  <% end %>
-</users>