Remove lock reason and add guard clause

app/controllers/sessions_controller.rb

@@ -46,7 +46,9 @@ class SessionsController < Devise::SessionsController
   private
   def log_failed_login
-    Gitlab::AppLogger.info("Failed Login: username=#{user_params[:login]} ip=#{request.remote_ip}") if failed_login?
+    return unless failed_login?
+
+    Gitlab::AppLogger.info("Failed Login: username=#{user_params[:login]} ip=#{request.remote_ip}")
   end
   def failed_login?

app/models/user.rb

@@ -1063,7 +1063,7 @@ class User < ActiveRecord::Base
   # override, from Devise
   def lock_access!
-    Gitlab::AppLogger.info("Account Locked: username=#{username} reason=invalid_login_attempts")
+    Gitlab::AppLogger.info("Account Locked: username=#{username}")
     super
   end