Criminal Law Questions? Ask a Criminal Lawyer.
Well, you will need to contact the District Attorney and tell them there was no injury and that you do not want to prosecute this matter. You can contact someone in the Victim/Witness Unit and they will assist you.
Now, bear in mind, that the DA has full discretion to prosecute or not. But if they don't have you as a witness and there was no injury, then it is possible to have it removed and charges dismissed
If you have further questions, you may post them here and i will continue to assist. Otherwise, even if you have a subscription with JA please remember to ACCEPT my answer as that is the only way I can get credit for my time and information in this matter. Thank you and good luck