Hines' decision comes a week after the Aggies' leading receiver from last season, Jhamon Ausbon, said he would opt out to begin preparing for the 2021 NFL draft.
Hines, a junior, intends to return for next season. He cited COVID-19 and social unrest as reasons he can't maintain total focus on football right now.
In a tweet Monday, Hines explained that he lost someone close to him to COVID-19.
Hines was Texas A&M's second-leading tackler (73) last season.
He ranked second on the team in tackles for loss (10.5) and fourth in quarterback hurries (4).
Texas A&M opens the season at home against Vanderbilt on Saturday.