Remove deprecated command

cli/src/main/scala/coursier/cli/Coursier.scala

@@ -188,91 +188,6 @@ case class Classpath(
 
 }
 
-// TODO: allow removing a repository (with confirmations, etc.)
-case class Repository(
-  @ValueDescription("id:baseUrl")
-  @ExtraName("a")
-    add: List[String],
-  @ExtraName("L")
-    list: Boolean,
-  @ExtraName("l")
-    defaultList: Boolean,
-  ivyLike: Boolean,
-  @Recurse
-    cacheOptions: CacheOptions
-) extends CoursierCommand {
-
-  if (add.exists(!_.contains(":"))) {
-    CaseApp.printUsage[Repository](err = true)
-    sys.exit(255)
-  }
-
-  val add0 = add
-    .map{ s =>
-      val Seq(id, baseUrl) = s.split(":", 2).toSeq
-      id -> baseUrl
-    }
-
-  if (
-    add0.exists(_._1.contains("/")) ||
-      add0.exists(_._1.startsWith(".")) ||
-      add0.exists(_._1.isEmpty)
-  ) {
-    CaseApp.printUsage[Repository](err = true)
-    sys.exit(255)
-  }
-
-
-  val cache = Cache(new File(cacheOptions.cache))
-
-  if (cache.cache.exists() && !cache.cache.isDirectory) {
-    Console.err.println(s"Error: ${cache.cache} not a directory")
-    sys.exit(1)
-  }
-
-  if (!cache.cache.exists())
-    cache.init(verbose = true)
-
-  val current = cache.list().map(_._1).toSet
-
-  val alreadyAdded = add0
-    .map(_._1)
-    .filter(current)
-
-  if (alreadyAdded.nonEmpty) {
-    Console.err.println(s"Error: already added: ${alreadyAdded.mkString(", ")}")
-    sys.exit(1)
-  }
-
-  for ((id, baseUrl0) <- add0) {
-    val baseUrl =
-      if (baseUrl0.endsWith("/"))
-        baseUrl0
-      else
-        baseUrl0 + "/"
-
-    cache.add(id, baseUrl, ivyLike = ivyLike)
-  }
-
-  if (defaultList) {
-    val map = cache.repositoryMap()
-
-    for (id <- cache.default(withNotFound = true))
-      map.get(id) match {
-        case Some(repo) =>
-          println(s"$id: ${repo.root}" + (if (repo.ivyLike) " (Ivy-like)" else ""))
-        case None =>
-          println(s"$id (not found)")
-      }
-  }
-
-  if (list)
-    for ((id, repo, _) <- cache.list().sortBy(_._1)) {
-      println(s"$id: ${repo.root}" + (if (repo.ivyLike) " (Ivy-like)" else ""))
-    }
-
-}
-
 case class Bootstrap(
   @ExtraName("M")
   @ExtraName("main")