Add emoji reaction deletion api

app/workers/un_emoji_react_worker.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class UnEmojiReactWorker
+  include Sidekiq::Worker
+
+  def perform(account_id, status_id, emoji = nil)
+    emoji_reaction = nil
+
+    if emoji
+      shortcode, domain = emoji.split('@')
+      emoji_reaction = EmojiReaction.where(account_id: account_id).where(status_id: status_id).where(name: shortcode)
+                                    .find { |reaction| domain == '' ? reaction.custom_emoji.nil? : reaction.custom_emoji&.domain == domain }
+    end
+
+    UnEmojiReactService.new.call(Account.find(account_id), Status.find(status_id), emoji_reaction)
+  rescue ActiveRecord::RecordNotFound
+    true
+  end
+end