Actually remove redundant code from helpers

app/helpers/external/mailbluster_helper.rb

@@ -1,64 +0,0 @@
-# frozen_string_literal: true
-
-require 'httparty'
-
-module External
-  module MailblusterHelper
-    MAILBLUSTER_URL = 'https://api.mailbluster.com/api/leads/'
-
-    # def query_api(user, method)
-    # TODO? General helper for all queries
-    # end
-
-    def create_lead(user)
-      options = {
-        headers: {
-          'Content-Type'  => 'application/json',
-          'Authorization' => ENV['MAILBLUSTER_API_KEY']
-        },
-        body:    {
-          'email'            => user.email,
-          'firstName'        => user.name,
-          'overrideExisting' => true,
-          'subscribed'       => true,
-          'tags'             => [ENV['OSEM_NAME'] || 'snapcon']
-        }.to_json
-      }
-      HTTParty.post(MAILBLUSTER_URL, options).parsed_response
-    rescue StandardError => e
-      puts "ERROR #{e}"
-      nil
-    end
-
-    def edit_lead(user, add_tags: [], remove_tags: [], old_email: nil)
-      options = {
-        headers: {
-          'Content-Type'  => 'application/json',
-          'Authorization' => ENV['MAILBLUSTER_API_KEY']
-        },
-        body:    {
-          'email'      => user.email,
-          'firstName'  => user.name,
-          'addTags'    => add_tags,
-          'removeTags' => remove_tags
-        }.to_json
-      }
-      email_hash = Digest::MD5.hexdigest(old_email.presence || user.email)
-      HTTParty.put(MAILBLUSTER_URL + email_hash, options).parsed_response
-    end
-
-    def delete_lead(user)
-      email_hash = Digest::MD5.hexdigest user.email
-      options = {
-        headers: {
-          'Content-Type'  => 'application/json',
-          'Authorization' => ENV['MAILBLUSTER_API_KEY']
-        }
-      }
-      HTTParty.delete(MAILBLUSTER_URL + email_hash, options).parsed_response
-    rescue StandardError => e
-      puts "ERROR #{e}"
-      nil
-    end
-  end
-end