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It's time to balance Stealth Rock. There are few competitively useful pokemon to remove it. It's possible with Rapid Spin (few learn), Defog (most often learned by flying type / 25% -50% damage) and Magic Brounce (few have this ability and half are mega evolutions). Many pokemon are not bad, they are only considered bad for losing 50% of hp because a pokemon threw pebbles on the field ... This is the case of pokemon like Articuno, which is very good defensively but considered a rubbish because of Stealth Rock.
One way to balance would be to reduce damage or to be absorbed by a Rock type.
Keeping Stealth Rock as it is will only drive away Flying, Fire, Bug, Ice. It is not fair for some pokemon to be unpopular for lack of balance of a move and then being permanently removed from new games for low popularity.