Removing uncalled method ✂✂✂ (#17110)

Introduced in forem/forem#3176, it appears that this method has been
along for the ride.

How did I find this?  I saw an exception and realized that we cast our
comment IDs from base-26 integer format to base-10.  I decided to look
through our code for `/\.to_\w\(26\)/` and stumbled upon the now removed
instance.

Quickly looking at the code, it appeared that this method was never
called.

So ✂✂✂

app/liquid_tags/poll_tag.rb

@@ -120,12 +120,6 @@ class PollTag < LiquidTagBase
     )
   end
 
-  def find_poll(id_code)
-    Poll.find(id_code.to_i(26))
-  rescue ActiveRecord::RecordNotFound
-    raise StandardError, I18n.t("liquid_tags.poll_tag.invalid_poll_id")
-  end
-
   def self.script
     SCRIPT
   end

config/locales/liquid_tags/en.yml

@@ -64,8 +64,6 @@ en:
       invalid_parler_url: Invalid Parler URL
     podcast_tag:
       invalid_podcast_link: Invalid podcast link
-    poll_tag:
-      invalid_poll_id: Invalid poll ID
     reddit_tag:
       invalid_reddit_link: 'Invalid Reddit link: %{url}'
     replit_tag:

config/locales/liquid_tags/fr.yml

@@ -64,8 +64,6 @@ fr:
       invalid_parler_url: Invalid Parler URL
     podcast_tag:
       invalid_podcast_link: Invalid podcast link
-    poll_tag:
-      invalid_poll_id: Invalid poll ID
     reddit_tag:
       invalid_reddit_link: 'Invalid Reddit link: %{url}'
     replit_tag: