remove pkg/cri/platforms package

The package is a duplicate of platforms. No need to maintain
pkg/cri/platforms.

Signed-off-by: Wei Fu <fuweid89@gmail.com>

pkg/cri/cri.go

@@ -41,7 +41,6 @@ import (
 
 	criconfig "github.com/containerd/containerd/pkg/cri/config"
 	"github.com/containerd/containerd/pkg/cri/constants"
-	criplatforms "github.com/containerd/containerd/pkg/cri/platforms"
 	"github.com/containerd/containerd/pkg/cri/server"
 )
 
@@ -91,7 +90,7 @@ func initCRIService(ic *plugin.InitContext) (interface{}, error) {
 	client, err := containerd.New(
 		"",
 		containerd.WithDefaultNamespace(constants.K8sContainerdNamespace),
-		containerd.WithDefaultPlatform(criplatforms.Default()),
+		containerd.WithDefaultPlatform(platforms.Default()),
 		containerd.WithServices(servicesOpts...),
 	)
 	if err != nil {

pkg/cri/platforms/default_unix.go

@@ -1,28 +0,0 @@
-// +build !windows
-
-/*
-   Copyright The containerd 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 platforms
-
-import (
-	"github.com/containerd/containerd/platforms"
-)
-
-// Default returns the current platform's default platform specification.
-func Default() platforms.MatchComparer {
-	return platforms.Default()
-}

pkg/cri/platforms/default_windows.go

@@ -1,28 +0,0 @@
-// +build windows
-
-/*
-   Copyright The containerd 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 platforms
-
-import (
-	"github.com/containerd/containerd/platforms"
-)
-
-// Default returns the current platform's default platform specification.
-func Default() platforms.MatchComparer {
-	return platforms.Default()
-}