api: remove available_includes dependent on current user.

This is to avoid specifying permissions in multiple disjoint places and
because most API users shouldn't need these fields.

app/models/comment.rb

@@ -166,8 +166,6 @@ class Comment < ApplicationRecord
   end
 
   def self.available_includes
-    includes_array = [:post, :creator, :updater]
-    includes_array << :moderation_reports if CurrentUser.is_moderator?
-    includes_array
+    [:post, :creator, :updater]
   end
 end

app/models/dmail.rb

@@ -197,8 +197,6 @@ class Dmail < ApplicationRecord
   end
 
   def self.available_includes
-    includes_array = [:owner, :to, :from]
-    includes_array << :moderation_reports if CurrentUser.is_moderator?
-    includes_array
+    [:owner, :to, :from]
   end
 end

app/models/forum_post.rb

@@ -225,8 +225,6 @@ class ForumPost < ApplicationRecord
   end
 
   def self.available_includes
-    includes_array = [:creator, :updater, :topic, :dtext_links, :votes, :tag_alias, :tag_implication, :bulk_update_request]
-    includes_array << :moderation_reports if CurrentUser.is_moderator?
-    includes_array
+    [:creator, :updater, :topic, :dtext_links, :votes, :tag_alias, :tag_implication, :bulk_update_request]
   end
 end

app/models/forum_topic.rb

@@ -179,8 +179,6 @@ class ForumTopic < ApplicationRecord
   end
 
   def self.available_includes
-    includes_array = [:creator, :updater, :original_post]
-    includes_array << :moderation_reports if CurrentUser.is_moderator?
-    includes_array
+    [:creator, :updater, :original_post]
   end
 end

app/models/post.rb

@@ -1768,9 +1768,6 @@ class Post < ApplicationRecord
   end
 
   def self.available_includes
-    includes_array = [:uploader, :updater, :approver, :parent, :upload, :artist_commentary, :flags, :appeals, :notes, :comments, :children, :approvals, :replacements]
-    includes_array << :moderation_reports if CurrentUser.is_moderator?
-    includes_array << :disapprovals if CurrentUser.user.is_approver?
-    includes_array
+    [:uploader, :updater, :approver, :parent, :upload, :artist_commentary, :flags, :appeals, :notes, :comments, :children, :approvals, :replacements]
   end
 end

app/models/post_flag.rb

@@ -163,8 +163,6 @@ class PostFlag < ApplicationRecord
   end
 
   def self.available_includes
-    includes_array = [:post]
-    includes_array << :creator if CurrentUser.user.is_moderator?
-    includes_array
+    [:post]
   end
 end