As the title says i want to remove adsense code from main site means by one which i got approved by adsense. This site becomes risky now and not earning much. So i want to remove ads from this site and continue with other sites from where get good revenue. Thanks in advance.
Yep. If you got the approval, there is no main site. all the sites have same priority. And you can remove the adsense code any of your sites including the site that you got the approval.
Of course you can! That would usually take about 2 days before Google can totally remove the site from the list. Nothing to worry about.