If you want to be sure you might want to alter the siteurl directly inside your database and remove it from wp-config.php

Here is how you alter de url’s inside your database:

• Backup your database and save the copy off-site.
• Login to phpMyAdmin
• Click the link to your Databases.
• A list of your databases will appear. Choose the one that is your WordPress database.
• All the tables in your database will appear on the screen.
• From the list, look for wp_options. Note: The table prefix of wp_ may be different if you changed it when installing.
• Click on the small icon indicated as Browse.
• A screen will open with a list of the fields within the wp_options table.
• Under the field option_name, scroll down and look for siteurl.
• Click the Edit Field icon which usually is found at the far left at the beginning of the row.
• The Edit Field window will appear.
• In the input box for option_value, carefully change the URL information to the new address.
• Verify this is correct and click Go to save the information.
• You should be returned to your wp_options table.
• Look for the home field in the table and click Edit Field. Note There are several pages of tables inside wp_options. Look for the > symbol to page through them.
• In the input box for option_value, carefully change the URL information to the new address.
• Verify this is correct and click Go to save the information.