feat: Always process email content (#12734)

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>

app/builders/messages/message_builder.rb

@@ -23,7 +23,7 @@ class Messages::MessageBuilder
     process_emails
     # When the message has no quoted content, it will just be rendered as a regular message
     # The frontend is equipped to handle this case
-    process_email_content if @account.feature_enabled?(:quoted_email_reply)
+    process_email_content
     @message.save!
     @message
   end