Remove sftp server extension

No longer needed.

src/test/kotlin/SftpServerExtension.kt

-/*
- * sftp-reader
- * Copyright (C) 2020 Memoriav
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package org.memobase
-
-import org.junit.jupiter.api.extension.BeforeAllCallback
-import org.junit.jupiter.api.extension.ExtensionContext
-
-class SftpServerExtension : BeforeAllCallback {
-    override fun beforeAll(context: ExtensionContext?) {
-        TODO("Not yet implemented")
-    }
-
-    class SftpServerWrapper(private val embedded: KafkaEmbedded) : ExtensionContext.Store.CloseableResource {
-        override fun close() {
-            embedded.close()
-        }
-    }
-}