How to Delete propellerads Ad codes From WordPress Site!

I had linked propellerads.com to insert ads on my website to monetize it in the first place but then i deleted the ads from my website due to some problems i was facing but the ads still popup in the website and my visitors are facing problems with the malware popping up all the time.Please do something to fix this.I want to move my existing website to a new WordPress hosting without losing any data like the posts,plugins,categories and pages I have in my website already.Please help me solve…

How to Delete propellerads Ad codes From WordPress Site!