This is the universal code for redirection. First of all lets redirect from www to non-www with our .htaccess file.
#Use this for non-ssl URL redirection
<IfModule mod_rewrite.c>
RewriteCond %{HTTPS} off
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^(.*)$ http://%1/$1 [R=301,L]
</IfModule>