In a statement, assistant Florida state attorney Bobby Elmore said that the charge was dropped at the request of the accusers' parents.
A misdemeanor battery charge against Zachery Kromer, Aaron Kromer's son, was also dropped Friday.
Both Aaron and Zachery Kromer had pleaded not guilty to the battery charges, stemming from a July 11 incident in which Aaron Kromer was alleged to have punched a boy in the face and threatened to kill his family in a dispute over beach chairs. Zachery Kromer was accused of placing his hands on another boy during the altercation.
"The parents of the the two alleged victims and the third minor witness stated that any injuries sustained by the alleged victims were minor and required no medical treatment, and that they desired the lives of their children not to be further disrupted, as an amicable resolution of the matter had been reached between all concerned," Elmore said in the statement.
The Bills are aware of the charges being dropped and could issue a statement later Friday.
Aaron Kromer remained on indefinite paid administrative leave from the Bills as they began training camp with a practice Friday morning. Assistant offensive line coach Kurt Anderson led the Bills' offensive line in drills and was assisted by former Chicago Bears offensive line coach Pat Meyer, who the Bills hired as a football operations consultant this summer.