Remove EmailsObserver

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/models/email.rb

@@ -21,6 +21,7 @@ class Email < ActiveRecord::Base
   validates :email, presence: true, email: { strict_mode: true }, uniqueness: true
   validate :unique_email, if: ->(email) { email.email_changed? }
 
+  after_create :notify
   before_validation :cleanup_email
 
   def cleanup_email
@@ -30,4 +31,8 @@ class Email < ActiveRecord::Base
   def unique_email
     self.errors.add(:email, 'has already been taken') if User.exists?(email: self.email)
   end
+
+  def notify
+    NotificationService.new.new_email(self)
+  end
 end

app/observers/email_observer.rb

@@ -1,5 +0,0 @@
-class EmailObserver < BaseObserver
-  def after_create(email)
-    notification.new_email(email)
-  end
-end