remove followers streaming API which no-one uses

according to monitoring

app/controllers/Relation.scala

@@ -142,17 +142,13 @@ final class Relation(
       )
     }
 
-  def apiFollowing(name: String) = apiRelation(name, Direction.Following)
-
-  def apiFollowers(name: String) = apiRelation(name, Direction.Followers)
-
-  private def apiRelation(name: String, direction: Direction) =
+  def apiFollowing(name: String) =
     Action.async { implicit req =>
-      env.user.repo.named(name) flatMap {
+      env.user.repo.enabledNamed(name) flatMap {
         _ ?? { user =>
           apiC.jsonStream {
             env.relation.stream
-              .follow(user, direction, MaxPerSecond(20))
+              .follow(user, Direction.Following, MaxPerSecond(20))
               .map(env.api.userApi.one)
           }.fuccess
         }

conf/routes

@@ -643,7 +643,6 @@ GET   /api/user/:name/tournament/created controllers.Api.tournamentsByOwner(name
 GET   /api/user/:name                  controllers.Api.user(name: String)
 GET   /api/user/:name/activity         controllers.Api.activity(name: String)
 GET   /api/user/:name/following        controllers.Relation.apiFollowing(name: String)
-GET   /api/user/:name/followers        controllers.Relation.apiFollowers(name: String)
 POST  /api/user/:name/note             controllers.User.apiWriteNote(name: String)
 GET   /api/user/:name/rating-history   controllers.User.ratingHistory(name: String)
 GET   /api/user/:name/current-game     controllers.User.tvExport(name: String)

modules/relation/src/main/RelationStream.scala

@@ -31,16 +31,14 @@ final class RelationStream(
       .mapAsync(1)(userRepo.usersFromSecondary)
       .mapConcat(identity)
 
-  private def selectField(d: Direction) =
-    d match {
-      case Direction.Following => "u1"
-      case Direction.Followers => "u2"
-    }
-  private def projectField(d: Direction) =
-    d match {
-      case Direction.Following => "u2"
-      case Direction.Followers => "u1"
-    }
+  private def selectField(d: Direction) = d match {
+    case Direction.Following => "u1"
+    case Direction.Followers => "u2"
+  }
+  private def projectField(d: Direction) = d match {
+    case Direction.Following => "u2"
+    case Direction.Followers => "u1"
+  }
 }
 
 object RelationStream {