Today I found one vqmod which remove all the index.php?route=common/home and linked to the URL only. It will help to improve the SEO on the home page as well as it will help to remove multiple links to the home page as per the SEO showing the same content from multiple URLs is not good.
1. Download the vqmod file
2. Upload jg_no_common_home.xml into the vqmod/XML folder and all are set.
If you did not find the vqmod folder then you have to install the vqmod.
3. Enjoy the module and improve your OpenCart site