opps wrong line of code xD

This 
```ruby
    def with_real_execute
      ActiveRecord::Base.connection.singleton_class.class_eval do
        alias_method :execute_with_stub, :execute
        remove_method :execute
        alias_method :execute, :execute_without_stub
      end

      yield
    ensure
      ActiveRecord::Base.connection.singleton_class.class_eval do
        remove_method :execute
        alias_method :execute, :execute_with_stub
      end
    end
```
can be replaced with 
```ruby
    def with_real_execute
      reset_connection
      yield
    end
```

I ran a few sample test and found out that resetting the connection is faster(runs the test faster) than creating the alias methods which makes it hard to follow as well.