Medication for Esophagitis

I have had acid reflux off and on in the past, but it has been much better recently. About one year ago, a doctor looked down my esophagus and into my stomach (a test he called an upper endoscopy). My esophagus was inflamed and I was told to take the medication Aciphex indefinitely. I rarely have heartburn and never need antacids. I certainly don't want to take this medicine forever. If I eat less acidic foods and don't experience heartburn, is it necessary to take this drug to keep my esophagus healthy?