style(rubocop): Lint/UnusedBlockArgument

lib/postal/message_db/message.rb

@@ -553,14 +553,14 @@ module Postal
       private
 
       def _update
-        @database.update("messages", @attributes.reject { |k, v| k == :id }, where: { id: @attributes["id"] })
+        @database.update("messages", @attributes.reject { |k, _| k == :id }, where: { id: @attributes["id"] })
       end
 
       def _create
         self.timestamp = Time.now.to_f if timestamp.blank?
         self.status = "Pending" if status.blank?
         self.token = Nifty::Utils::RandomString.generate(length: 12) if token.blank?
-        last_id = @database.insert("messages", @attributes.reject { |k, v| k == :id })
+        last_id = @database.insert("messages", @attributes.reject { |k, _| k == :id })
         @attributes["id"] = last_id
         @database.statistics.increment_all(timestamp, scope)
         Statistic.global.increment!(:total_messages)

lib/postal/smtp_server/client.rb

@@ -188,7 +188,7 @@ module Postal
           authenticate(password)
         end
 
-        username_handler = proc do |data|
+        username_handler = proc do
           @proc = password_handler
           @password_expected_next = true
           "334 UGFzc3dvcmQ6" # "Password:"