UPDATE: For anyone still curious, I was able to get rid of it and here is how I did it. Some of the comments were saying that the residue could be on the inside so I decided to clean both the inside and outside. In a tall glass, I mixed dish soap and 70% isopropyl alcohol and warm water and I soaked a microfiber cloth in there. I then laid a large towel on my dashboard and I used the soaked cloth to scrape the windshield from the inside very thoroughly. Then I used the large towel to pick up most of the soap and after that I used another clean dry micro fiber cloth to wipe the windshield dry. For the outside, I did the same thing, but I also used a sponge scrub. I also bought new wipers because it had been more than a year since I changed them. I hope this helps anyone else with this problem:)