diff --git a/internal/plugins/envtest/v1/init.go b/internal/plugins/envtest/v1/init.go
deleted file mode 100644
index 53e5d3dca3..0000000000
--- a/internal/plugins/envtest/v1/init.go
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright 2021 The Operator-SDK Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package v1
-
-import (
-	"fmt"
-	"os"
-	"strings"
-
-	"github.com/spf13/afero"
-	"sigs.k8s.io/kubebuilder/v4/pkg/config"
-	"sigs.k8s.io/kubebuilder/v4/pkg/machinery"
-	"sigs.k8s.io/kubebuilder/v4/pkg/plugin"
-)
-
-const (
-	// controllerRuntimeVersion version to be used to download the envtest setup script
-	controllerRuntimeVersion = "v0.6.3"
-
-	filePath = "Makefile"
-)
-
-var _ plugin.InitSubcommand = &initSubcommand{}
-
-type initSubcommand struct {
-	config config.Config
-}
-
-func (s *initSubcommand) InjectConfig(c config.Config) error {
-	s.config = c
-
-	return nil
-}
-
-func (s *initSubcommand) Scaffold(fs machinery.Filesystem) error {
-	makefileBytes, err := afero.ReadFile(fs.FS, filePath)
-	if err != nil {
-		return err
-	}
-
-	makefileBytes = []byte(strings.Replace(string(makefileBytes), oldMakefileTestTarget, fmt.Sprintf(makefileTestTarget, controllerRuntimeVersion), 1))
-
-	var mode os.FileMode = 0644
-	if info, err := fs.FS.Stat(filePath); err == nil {
-		mode = info.Mode()
-	}
-	if err := os.WriteFile(filePath, makefileBytes, mode); err != nil {
-		return fmt.Errorf("error updating Makefile: %w", err)
-	}
-
-	return nil
-}
-
-const (
-	oldMakefileTestTarget = `# Run tests
-test: manifests generate fmt vet
-	go test ./... -coverprofile cover.out`
-	makefileTestTarget = `# Run tests
-ENVTEST_ASSETS_DIR = $(shell pwd)/testbin
-test: manifests generate fmt vet
-	mkdir -p $(ENVTEST_ASSETS_DIR)
-	test -f $(ENVTEST_ASSETS_DIR)/setup-envtest.sh || curl -sSLo $(ENVTEST_ASSETS_DIR)/setup-envtest.sh https://raw.githubusercontent.com/kubernetes-sigs/controller-runtime/%s/hack/setup-envtest.sh
-	source $(ENVTEST_ASSETS_DIR)/setup-envtest.sh; fetch_envtest_tools $(ENVTEST_ASSETS_DIR); setup_envtest_env $(ENVTEST_ASSETS_DIR); go test ./... -coverprofile cover.out`
-)
diff --git a/internal/plugins/envtest/v1/plugin.go b/internal/plugins/envtest/v1/plugin.go
deleted file mode 100644
index b8825e9fbd..0000000000
--- a/internal/plugins/envtest/v1/plugin.go
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright 2021 The Operator-SDK Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// This plugin replaces the test target of go/v2 plugins to match that of go/v3.
-// More info: https://github.com/kubernetes-sigs/kubebuilder/pull/1711
-package v1
-
-import (
-	"sigs.k8s.io/kubebuilder/v4/pkg/config"
-	cfgv3 "sigs.k8s.io/kubebuilder/v4/pkg/config/v3"
-	"sigs.k8s.io/kubebuilder/v4/pkg/plugin"
-
-	"github.com/operator-framework/operator-sdk/internal/plugins"
-)
-
-const pluginName = "envtest" + plugins.DefaultNameQualifier
-
-var (
-	pluginVersion            = plugin.Version{Number: 1}
-	supportedProjectVersions = []config.Version{cfgv3.Version}
-)
-
-var (
-	_ plugin.Plugin = Plugin{}
-	_ plugin.Init   = Plugin{}
-)
-
-type Plugin struct {
-	initSubcommand
-}
-
-func (Plugin) Name() string                               { return pluginName }
-func (Plugin) Version() plugin.Version                    { return pluginVersion }
-func (Plugin) SupportedProjectVersions() []config.Version { return supportedProjectVersions }
-func (p Plugin) GetInitSubcommand() plugin.InitSubcommand { return &p.initSubcommand }
-
-type Config struct{}