There shout not be code like <meta name=”robots” content=”noindex,nofollow” /> with default WordPress installation unlike you place a mark for ‘discourage search engines from indexing this site’ with installation or using setting.
If it is the case you can do following thing to remove it.
Go to Settings > Reading and unmark Discourage Search Engines.
If above solution is not solve your question, then probably <meta name=”robots” content=”noindex,nofollow” /> part was added buy one of the plugin you installed.