Rescue isn't the only way someone can troll with. Any role for that matter can mess people over.

Tanks can drop cleaves and busters on people or can manage enmity with toggling stance and using Shirk. Are we gonna remove AOE busters and enmity tools now?

DPS can drop cleaving mechanics on other players to troll them or leave puddles in undesirable locations. We gonna remove AOE mechanics?

Healers can select how to heal and can choose to not heal you, they don't need rescue to mess you up. Are we going to remove healing from healers now and make it all a personal job to recover HP?

Do you realize how stupid your request is?