Fix RuboCop offense Lint/UselessRescue (#36919).

git-svn-id: https://svn.redmine.org/redmine/trunk@22035 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/user.rb

@@ -235,8 +235,6 @@ class User < Principal
     end
     user.update_last_login_on! if user && !user.new_record? && user.active?
     user
-  rescue => text
-    raise text
   end
 
   # Returns the user who matches the given autologin +key+ or nil