diff --git a/sbt-plugin/src/sbt-test/gen-scala-server/06-compatibility-plugins/build.sbt b/sbt-plugin/src/sbt-test/gen-scala-server/06-compatibility-plugins/build.sbt
deleted file mode 100644
index 5e774789b..000000000
--- a/sbt-plugin/src/sbt-test/gen-scala-server/06-compatibility-plugins/build.sbt
+++ /dev/null
@@ -1,16 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * license agreements; and to You under the Apache License, version 2.0:
- *
- *   https://www.apache.org/licenses/LICENSE-2.0
- *
- * This file is part of the Apache Pekko project, which was derived from Akka.
- */
-
-// Can be removed when we move to 2.12.14
-// https://github.com/akka/akka-grpc/pull/1279
-scalaVersion := "2.12.18"
-
-enablePlugins(ProtocJSPlugin) // enable it first to test possibility of getting overriden
-
-enablePlugins(PekkoGrpcPlugin)
diff --git a/sbt-plugin/src/sbt-test/gen-scala-server/06-compatibility-plugins/project/ProtocJSPlugin.scala b/sbt-plugin/src/sbt-test/gen-scala-server/06-compatibility-plugins/project/ProtocJSPlugin.scala
deleted file mode 100644
index e050644dc..000000000
--- a/sbt-plugin/src/sbt-test/gen-scala-server/06-compatibility-plugins/project/ProtocJSPlugin.scala
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * license agreements; and to You under the Apache License, version 2.0:
- *
- *   https://www.apache.org/licenses/LICENSE-2.0
- *
- * This file is part of the Apache Pekko project, which was derived from Akka.
- */
-
-import sbt.Keys._
-import sbt._
-import sbtprotoc.ProtocPlugin
-import sbtprotoc.ProtocPlugin.autoImport.PB
-
-object ProtocJSPlugin extends AutoPlugin {
-
-  override def trigger: PluginTrigger = noTrigger
-
-  override def requires: Plugins = ProtocPlugin
-
-  override def projectSettings: Seq[Def.Setting[_]] =
-    Seq(Compile, Test).flatMap(inConfig(_)(PB.targets += PB.gens.js -> resourceManaged.value / "js"))
-}
diff --git a/sbt-plugin/src/sbt-test/gen-scala-server/06-compatibility-plugins/project/plugins.sbt b/sbt-plugin/src/sbt-test/gen-scala-server/06-compatibility-plugins/project/plugins.sbt
deleted file mode 100644
index 5eb2b6556..000000000
--- a/sbt-plugin/src/sbt-test/gen-scala-server/06-compatibility-plugins/project/plugins.sbt
+++ /dev/null
@@ -1,10 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * license agreements; and to You under the Apache License, version 2.0:
- *
- *   https://www.apache.org/licenses/LICENSE-2.0
- *
- * This file is part of the Apache Pekko project, which was derived from Akka.
- */
-
-addSbtPlugin("org.apache.pekko" % "pekko-grpc-sbt-plugin" % sys.props("project.version"))
diff --git a/sbt-plugin/src/sbt-test/gen-scala-server/06-compatibility-plugins/src/main/protobuf/helloworld.proto b/sbt-plugin/src/sbt-test/gen-scala-server/06-compatibility-plugins/src/main/protobuf/helloworld.proto
deleted file mode 100644
index 0f4426692..000000000
--- a/sbt-plugin/src/sbt-test/gen-scala-server/06-compatibility-plugins/src/main/protobuf/helloworld.proto
+++ /dev/null
@@ -1,29 +0,0 @@
-syntax = "proto3";
-
-option java_multiple_files = true;
-option java_package = "example.myapp.helloworld.grpc";
-option java_outer_classname = "HelloWorldProto";
-
-package helloworld;
-
-// The greeting service definition.
-service GreeterService {
-    // Sends a greeting
-    rpc SayHello (HelloRequest) returns (HelloReply) {}
-
-    rpc ItKeepsTalking (stream HelloRequest) returns (HelloReply) {}
-
-    rpc ItKeepsReplying (HelloRequest) returns (stream HelloReply) {}
-
-    rpc StreamHellos (stream HelloRequest) returns (stream HelloReply) {}
-}
-
-// The request message containing the user's name.
-message HelloRequest {
-    string name = 1;
-}
-
-// The response message containing the greetings
-message HelloReply {
-    string message = 1;
-}
diff --git a/sbt-plugin/src/sbt-test/gen-scala-server/06-compatibility-plugins/src/test/protobuf/echo.proto b/sbt-plugin/src/sbt-test/gen-scala-server/06-compatibility-plugins/src/test/protobuf/echo.proto
deleted file mode 100644
index de1aed8ea..000000000
--- a/sbt-plugin/src/sbt-test/gen-scala-server/06-compatibility-plugins/src/test/protobuf/echo.proto
+++ /dev/null
@@ -1,15 +0,0 @@
-syntax = "proto3";
-
-option java_multiple_files = true;
-option java_package = "example.myapp.echo.grpc";
-
-package echo;
-
-// The greeting service definition.
-service EchoService {
-    rpc Echo (EchoMessage) returns (EchoMessage) {}
-}
-
-message EchoMessage {
-    string payload = 1;
-}
diff --git a/sbt-plugin/src/sbt-test/gen-scala-server/06-compatibility-plugins/test b/sbt-plugin/src/sbt-test/gen-scala-server/06-compatibility-plugins/test
deleted file mode 100644
index 50cbc18bb..000000000
--- a/sbt-plugin/src/sbt-test/gen-scala-server/06-compatibility-plugins/test
+++ /dev/null
@@ -1,8 +0,0 @@
-> compile
-
-$ exists target/scala-2.12/resource_managed/main/js/hellorequest.js
-$ exists target/scala-2.12/pekko-grpc/main/example/myapp/helloworld/grpc/HelloRequest.scala
-
-> test:compile
-$ exists target/scala-2.12/resource_managed/test/js/echomessage.js
-$ exists target/scala-2.12/pekko-grpc/test/example/myapp/echo/grpc/EchoMessage.scala